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Finding the Fourth Proportional to 496,989.20, 745,483.80 and 475,216.40

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Solution

The fourth proportional to 496,989.20, 745,483.80 and 475,216.40 is: 712,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,989.20 : 745,483.80 = 475,216.40 : x
  2. Step 2: Convert to fraction form
    496,989.20/745,483.80 = 475,216.40/x
  3. Step 3: Cross multiply
    496,989.20x = 745,483.80 × 475,216.40
  4. Step 4: Simplify right side
    496,989.20x = 354,266,127,694.32
  5. Step 5: Solve for x
    x = 354,266,127,694.32/496,989.20
  6. Step 6: Final answer
    x = 712,824.60

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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.