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Finding the Fourth Proportional to 439,902, 607,064.76 and 238,698

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Solution

The fourth proportional to 439,902, 607,064.76 and 238,698 is: 329,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,902 : 607,064.76 = 238,698 : x
  2. Step 2: Convert to fraction form
    439,902/607,064.76 = 238,698/x
  3. Step 3: Cross multiply
    439,902x = 607,064.76 × 238,698
  4. Step 4: Simplify right side
    439,902x = 144,905,144,082.48
  5. Step 5: Solve for x
    x = 144,905,144,082.48/439,902
  6. Step 6: Final answer
    x = 329,403.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.