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Finding the Fourth Proportional to 493,542.80, 740,314.20 and 417,435.20

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Solution

The fourth proportional to 493,542.80, 740,314.20 and 417,435.20 is: 626,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,542.80 : 740,314.20 = 417,435.20 : x
  2. Step 2: Convert to fraction form
    493,542.80/740,314.20 = 417,435.20/x
  3. Step 3: Cross multiply
    493,542.80x = 740,314.20 × 417,435.20
  4. Step 4: Simplify right side
    493,542.80x = 309,033,206,139.84
  5. Step 5: Solve for x
    x = 309,033,206,139.84/493,542.80
  6. Step 6: Final answer
    x = 626,152.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.