Home / 840,820.80-1,160,336.88-458,855.60

Finding the Fourth Proportional to 840,820.80, 1,160,336.88 and 458,855.60

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Solution

The fourth proportional to 840,820.80, 1,160,336.88 and 458,855.60 is: 633,223.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,820.80 : 1,160,336.88 = 458,855.60 : x
  2. Step 2: Convert to fraction form
    840,820.80/1,160,336.88 = 458,855.60/x
  3. Step 3: Cross multiply
    840,820.80x = 1,160,336.88 × 458,855.60
  4. Step 4: Simplify right side
    840,820.80x = 532,427,075,274.53
  5. Step 5: Solve for x
    x = 532,427,075,274.53/840,820.80
  6. Step 6: Final answer
    x = 633,223.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.