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Finding the Fourth Proportional to 666,355.32, 999,232.47 and 329,264.55

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Solution

The fourth proportional to 666,355.32, 999,232.47 and 329,264.55 is: 493,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,355.32 : 999,232.47 = 329,264.55 : x
  2. Step 2: Convert to fraction form
    666,355.32/999,232.47 = 329,264.55/x
  3. Step 3: Cross multiply
    666,355.32x = 999,232.47 × 329,264.55
  4. Step 4: Simplify right side
    666,355.32x = 329,011,829,579.94
  5. Step 5: Solve for x
    x = 329,011,829,579.94/666,355.32
  6. Step 6: Final answer
    x = 493,748.33

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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.