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Finding the Fourth Proportional to 559,272.92, 838,258.63 and 319,554.74

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Solution

The fourth proportional to 559,272.92, 838,258.63 and 319,554.74 is: 478,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,272.92 : 838,258.63 = 319,554.74 : x
  2. Step 2: Convert to fraction form
    559,272.92/838,258.63 = 319,554.74/x
  3. Step 3: Cross multiply
    559,272.92x = 838,258.63 × 319,554.74
  4. Step 4: Simplify right side
    559,272.92x = 267,869,519,859.17
  5. Step 5: Solve for x
    x = 267,869,519,859.17/559,272.92
  6. Step 6: Final answer
    x = 478,960.29

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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.