Home / 497,619.60-746,429.40-287,149.20

Finding the Fourth Proportional to 497,619.60, 746,429.40 and 287,149.20

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Solution

The fourth proportional to 497,619.60, 746,429.40 and 287,149.20 is: 430,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,619.60 : 746,429.40 = 287,149.20 : x
  2. Step 2: Convert to fraction form
    497,619.60/746,429.40 = 287,149.20/x
  3. Step 3: Cross multiply
    497,619.60x = 746,429.40 × 287,149.20
  4. Step 4: Simplify right side
    497,619.60x = 214,336,605,066.48
  5. Step 5: Solve for x
    x = 214,336,605,066.48/497,619.60
  6. Step 6: Final answer
    x = 430,723.80

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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.