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Finding the Fourth Proportional to 497,247.20, 745,870.80 and 447,480.80

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Solution

The fourth proportional to 497,247.20, 745,870.80 and 447,480.80 is: 671,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,247.20 : 745,870.80 = 447,480.80 : x
  2. Step 2: Convert to fraction form
    497,247.20/745,870.80 = 447,480.80/x
  3. Step 3: Cross multiply
    497,247.20x = 745,870.80 × 447,480.80
  4. Step 4: Simplify right side
    497,247.20x = 333,762,862,280.64
  5. Step 5: Solve for x
    x = 333,762,862,280.64/497,247.20
  6. Step 6: Final answer
    x = 671,221.20

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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.