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Finding the Fourth Proportional to 438,881.10, 658,321.65 and 404,666.70

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Solution

The fourth proportional to 438,881.10, 658,321.65 and 404,666.70 is: 607,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,881.10 : 658,321.65 = 404,666.70 : x
  2. Step 2: Convert to fraction form
    438,881.10/658,321.65 = 404,666.70/x
  3. Step 3: Cross multiply
    438,881.10x = 658,321.65 × 404,666.70
  4. Step 4: Simplify right side
    438,881.10x = 266,400,849,644.06
  5. Step 5: Solve for x
    x = 266,400,849,644.06/438,881.10
  6. Step 6: Final answer
    x = 607,000.05

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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.