Home / 782,686.80-1,173,155.40-333,331.20

Finding the Fourth Proportional to 782,686.80, 1,173,155.40 and 333,331.20

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Solution

The fourth proportional to 782,686.80, 1,173,155.40 and 333,331.20 is: 499,624.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,686.80 : 1,173,155.40 = 333,331.20 : x
  2. Step 2: Convert to fraction form
    782,686.80/1,173,155.40 = 333,331.20/x
  3. Step 3: Cross multiply
    782,686.80x = 1,173,155.40 × 333,331.20
  4. Step 4: Simplify right side
    782,686.80x = 391,049,297,268.48
  5. Step 5: Solve for x
    x = 391,049,297,268.48/782,686.80
  6. Step 6: Final answer
    x = 499,624.24

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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.