Home / 785,407.92-1,177,761.96-286,422

Finding the Fourth Proportional to 785,407.92, 1,177,761.96 and 286,422

Calculator

Solution

The fourth proportional to 785,407.92, 1,177,761.96 and 286,422 is: 429,505.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,407.92 : 1,177,761.96 = 286,422 : x
  2. Step 2: Convert to fraction form
    785,407.92/1,177,761.96 = 286,422/x
  3. Step 3: Cross multiply
    785,407.92x = 1,177,761.96 × 286,422
  4. Step 4: Simplify right side
    785,407.92x = 337,336,936,107.12
  5. Step 5: Solve for x
    x = 337,336,936,107.12/785,407.92
  6. Step 6: Final answer
    x = 429,505.39

Related Problems

Find fourth proportional to 392,703.96, 588,880.98 and 143,211
Half scale
Find fourth proportional to 1,570,815.84, 2,355,523.92 and 572,844
Double scale
Find fourth proportional to 785,408.92, 1,177,763.46 and 286,423
Similar ratio
Find fourth proportional to 1,178,111.88, 1,766,642.94 and 429,633
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.