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Finding the Fourth Proportional to 865,835.91, 1,194,750.03 and 478,599

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Solution

The fourth proportional to 865,835.91, 1,194,750.03 and 478,599 is: 660,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,835.91 : 1,194,750.03 = 478,599 : x
  2. Step 2: Convert to fraction form
    865,835.91/1,194,750.03 = 478,599/x
  3. Step 3: Cross multiply
    865,835.91x = 1,194,750.03 × 478,599
  4. Step 4: Simplify right side
    865,835.91x = 571,806,169,607.97
  5. Step 5: Solve for x
    x = 571,806,169,607.97/865,835.91
  6. Step 6: Final answer
    x = 660,409.40

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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.