Home / 516,172.55-712,338.10-286,747.25

Finding the Fourth Proportional to 516,172.55, 712,338.10 and 286,747.25

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Solution

The fourth proportional to 516,172.55, 712,338.10 and 286,747.25 is: 395,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,172.55 : 712,338.10 = 286,747.25 : x
  2. Step 2: Convert to fraction form
    516,172.55/712,338.10 = 286,747.25/x
  3. Step 3: Cross multiply
    516,172.55x = 712,338.10 × 286,747.25
  4. Step 4: Simplify right side
    516,172.55x = 204,260,986,966.67
  5. Step 5: Solve for x
    x = 204,260,986,966.67/516,172.55
  6. Step 6: Final answer
    x = 395,722.30

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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.