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Finding the Fourth Proportional to 666,952.80, 999,748.80 and 329,474.40

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Solution

The fourth proportional to 666,952.80, 999,748.80 and 329,474.40 is: 493,875.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,952.80 : 999,748.80 = 329,474.40 : x
  2. Step 2: Convert to fraction form
    666,952.80/999,748.80 = 329,474.40/x
  3. Step 3: Cross multiply
    666,952.80x = 999,748.80 × 329,474.40
  4. Step 4: Simplify right side
    666,952.80x = 329,391,636,030.72
  5. Step 5: Solve for x
    x = 329,391,636,030.72/666,952.80
  6. Step 6: Final answer
    x = 493,875.48

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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.