Home / 949,930.80-1,423,686.60-388,330.80

Finding the Fourth Proportional to 949,930.80, 1,423,686.60 and 388,330.80

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Solution

The fourth proportional to 949,930.80, 1,423,686.60 and 388,330.80 is: 582,001.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,930.80 : 1,423,686.60 = 388,330.80 : x
  2. Step 2: Convert to fraction form
    949,930.80/1,423,686.60 = 388,330.80/x
  3. Step 3: Cross multiply
    949,930.80x = 1,423,686.60 × 388,330.80
  4. Step 4: Simplify right side
    949,930.80x = 552,861,356,327.28
  5. Step 5: Solve for x
    x = 552,861,356,327.28/949,930.80
  6. Step 6: Final answer
    x = 582,001.72

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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.