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Finding the Fourth Proportional to 438,897.10, 658,345.65 and 404,337.10

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Solution

The fourth proportional to 438,897.10, 658,345.65 and 404,337.10 is: 606,505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,897.10 : 658,345.65 = 404,337.10 : x
  2. Step 2: Convert to fraction form
    438,897.10/658,345.65 = 404,337.10/x
  3. Step 3: Cross multiply
    438,897.10x = 658,345.65 × 404,337.10
  4. Step 4: Simplify right side
    438,897.10x = 266,193,570,918.62
  5. Step 5: Solve for x
    x = 266,193,570,918.62/438,897.10
  6. Step 6: Final answer
    x = 606,505.65

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Similar ratio
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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.