Home / 770,405.88-1,155,854.86-371,087.02

Finding the Fourth Proportional to 770,405.88, 1,155,854.86 and 371,087.02

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Solution

The fourth proportional to 770,405.88, 1,155,854.86 and 371,087.02 is: 556,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,405.88 : 1,155,854.86 = 371,087.02 : x
  2. Step 2: Convert to fraction form
    770,405.88/1,155,854.86 = 371,087.02/x
  3. Step 3: Cross multiply
    770,405.88x = 1,155,854.86 × 371,087.02
  4. Step 4: Simplify right side
    770,405.88x = 428,922,738,154.38
  5. Step 5: Solve for x
    x = 428,922,738,154.38/770,405.88
  6. Step 6: Final answer
    x = 556,749.04

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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.