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Finding the Fourth Proportional to 616,619.70, 924,929.55 and 476,478.90

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Solution

The fourth proportional to 616,619.70, 924,929.55 and 476,478.90 is: 714,718.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,619.70 : 924,929.55 = 476,478.90 : x
  2. Step 2: Convert to fraction form
    616,619.70/924,929.55 = 476,478.90/x
  3. Step 3: Cross multiply
    616,619.70x = 924,929.55 × 476,478.90
  4. Step 4: Simplify right side
    616,619.70x = 440,709,414,561.50
  5. Step 5: Solve for x
    x = 440,709,414,561.50/616,619.70
  6. Step 6: Final answer
    x = 714,718.35

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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.