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Finding the Fourth Proportional to 616,748.80, 925,814.40 and 477,126.40

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Solution

The fourth proportional to 616,748.80, 925,814.40 and 477,126.40 is: 716,224.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,748.80 : 925,814.40 = 477,126.40 : x
  2. Step 2: Convert to fraction form
    616,748.80/925,814.40 = 477,126.40/x
  3. Step 3: Cross multiply
    616,748.80x = 925,814.40 × 477,126.40
  4. Step 4: Simplify right side
    616,748.80x = 441,730,491,740.16
  5. Step 5: Solve for x
    x = 441,730,491,740.16/616,748.80
  6. Step 6: Final answer
    x = 716,224.32

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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.