Home / 887,057.20-1,224,139.40-479,159.02

Finding the Fourth Proportional to 887,057.20, 1,224,139.40 and 479,159.02

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Solution

The fourth proportional to 887,057.20, 1,224,139.40 and 479,159.02 is: 661,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,057.20 : 1,224,139.40 = 479,159.02 : x
  2. Step 2: Convert to fraction form
    887,057.20/1,224,139.40 = 479,159.02/x
  3. Step 3: Cross multiply
    887,057.20x = 1,224,139.40 × 479,159.02
  4. Step 4: Simplify right side
    887,057.20x = 586,557,435,247.39
  5. Step 5: Solve for x
    x = 586,557,435,247.39/887,057.20
  6. Step 6: Final answer
    x = 661,239.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.