Home / 515,217.02-710,963.88-285,752.66

Finding the Fourth Proportional to 515,217.02, 710,963.88 and 285,752.66

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Solution

The fourth proportional to 515,217.02, 710,963.88 and 285,752.66 is: 394,318.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,217.02 : 710,963.88 = 285,752.66 : x
  2. Step 2: Convert to fraction form
    515,217.02/710,963.88 = 285,752.66/x
  3. Step 3: Cross multiply
    515,217.02x = 710,963.88 × 285,752.66
  4. Step 4: Simplify right side
    515,217.02x = 203,159,819,873.92
  5. Step 5: Solve for x
    x = 203,159,819,873.92/515,217.02
  6. Step 6: Final answer
    x = 394,318.92

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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.