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Finding the Fourth Proportional to 616,755, 920,156.88 and 549,439.14

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Solution

The fourth proportional to 616,755, 920,156.88 and 549,439.14 is: 819,726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,755 : 920,156.88 = 549,439.14 : x
  2. Step 2: Convert to fraction form
    616,755/920,156.88 = 549,439.14/x
  3. Step 3: Cross multiply
    616,755x = 920,156.88 × 549,439.14
  4. Step 4: Simplify right side
    616,755x = 505,570,204,812.28
  5. Step 5: Solve for x
    x = 505,570,204,812.28/616,755
  6. Step 6: Final answer
    x = 819,726.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.