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Finding the Fourth Proportional to 526,777.80, 726,955.28 and 285,060.35

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Solution

The fourth proportional to 526,777.80, 726,955.28 and 285,060.35 is: 393,384.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,777.80 : 726,955.28 = 285,060.35 : x
  2. Step 2: Convert to fraction form
    526,777.80/726,955.28 = 285,060.35/x
  3. Step 3: Cross multiply
    526,777.80x = 726,955.28 × 285,060.35
  4. Step 4: Simplify right side
    526,777.80x = 207,226,121,491.07
  5. Step 5: Solve for x
    x = 207,226,121,491.07/526,777.80
  6. Step 6: Final answer
    x = 393,384.31

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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.