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Finding the Fourth Proportional to 538,937.65, 807,688.06 and 254,703.59

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Solution

The fourth proportional to 538,937.65, 807,688.06 and 254,703.59 is: 381,715.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,937.65 : 807,688.06 = 254,703.59 : x
  2. Step 2: Convert to fraction form
    538,937.65/807,688.06 = 254,703.59/x
  3. Step 3: Cross multiply
    538,937.65x = 807,688.06 × 254,703.59
  4. Step 4: Simplify right side
    538,937.65x = 205,721,046,835.77
  5. Step 5: Solve for x
    x = 205,721,046,835.77/538,937.65
  6. Step 6: Final answer
    x = 381,715.86

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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.