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Finding the Fourth Proportional to 508,565.61, 701,829.45 and 279,144.36

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Solution

The fourth proportional to 508,565.61, 701,829.45 and 279,144.36 is: 385,224.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,565.61 : 701,829.45 = 279,144.36 : x
  2. Step 2: Convert to fraction form
    508,565.61/701,829.45 = 279,144.36/x
  3. Step 3: Cross multiply
    508,565.61x = 701,829.45 × 279,144.36
  4. Step 4: Simplify right side
    508,565.61x = 195,911,732,649.40
  5. Step 5: Solve for x
    x = 195,911,732,649.40/508,565.61
  6. Step 6: Final answer
    x = 385,224.11

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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.