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Finding the Fourth Proportional to 442,407.84, 660,381.99 and 379,631.37

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Solution

The fourth proportional to 442,407.84, 660,381.99 and 379,631.37 is: 566,675.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,407.84 : 660,381.99 = 379,631.37 : x
  2. Step 2: Convert to fraction form
    442,407.84/660,381.99 = 379,631.37/x
  3. Step 3: Cross multiply
    442,407.84x = 660,381.99 × 379,631.37
  4. Step 4: Simplify right side
    442,407.84x = 250,701,719,587.03
  5. Step 5: Solve for x
    x = 250,701,719,587.03/442,407.84
  6. Step 6: Final answer
    x = 566,675.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.