Home / 876,307.60-1,314,979.80-639,053.20

Finding the Fourth Proportional to 876,307.60, 1,314,979.80 and 639,053.20

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Solution

The fourth proportional to 876,307.60, 1,314,979.80 and 639,053.20 is: 958,957.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,307.60 : 1,314,979.80 = 639,053.20 : x
  2. Step 2: Convert to fraction form
    876,307.60/1,314,979.80 = 639,053.20/x
  3. Step 3: Cross multiply
    876,307.60x = 1,314,979.80 × 639,053.20
  4. Step 4: Simplify right side
    876,307.60x = 840,342,049,125.36
  5. Step 5: Solve for x
    x = 840,342,049,125.36/876,307.60
  6. Step 6: Final answer
    x = 958,957.85

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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.