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Finding the Fourth Proportional to 492,718.80, 739,078.20 and 413,002.65

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Solution

The fourth proportional to 492,718.80, 739,078.20 and 413,002.65 is: 619,503.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,718.80 : 739,078.20 = 413,002.65 : x
  2. Step 2: Convert to fraction form
    492,718.80/739,078.20 = 413,002.65/x
  3. Step 3: Cross multiply
    492,718.80x = 739,078.20 × 413,002.65
  4. Step 4: Simplify right side
    492,718.80x = 305,241,255,157.23
  5. Step 5: Solve for x
    x = 305,241,255,157.23/492,718.80
  6. Step 6: Final answer
    x = 619,503.98

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Similar ratio
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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.