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Finding the Fourth Proportional to 492,045.40, 737,607.30 and 385,370.20

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Solution

The fourth proportional to 492,045.40, 737,607.30 and 385,370.20 is: 577,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,045.40 : 737,607.30 = 385,370.20 : x
  2. Step 2: Convert to fraction form
    492,045.40/737,607.30 = 385,370.20/x
  3. Step 3: Cross multiply
    492,045.40x = 737,607.30 × 385,370.20
  4. Step 4: Simplify right side
    492,045.40x = 284,251,872,722.46
  5. Step 5: Solve for x
    x = 284,251,872,722.46/492,045.40
  6. Step 6: Final answer
    x = 577,694.40

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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.