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Finding the Fourth Proportional to 559,417.08, 838,972.05 and 154,512.48

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Solution

The fourth proportional to 559,417.08, 838,972.05 and 154,512.48 is: 231,726.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,417.08 : 838,972.05 = 154,512.48 : x
  2. Step 2: Convert to fraction form
    559,417.08/838,972.05 = 154,512.48/x
  3. Step 3: Cross multiply
    559,417.08x = 838,972.05 × 154,512.48
  4. Step 4: Simplify right side
    559,417.08x = 129,631,649,943.69
  5. Step 5: Solve for x
    x = 129,631,649,943.69/559,417.08
  6. Step 6: Final answer
    x = 231,726.30

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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.