Home / 979,204.80-1,468,807.20-643,281.60

Finding the Fourth Proportional to 979,204.80, 1,468,807.20 and 643,281.60

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Solution

The fourth proportional to 979,204.80, 1,468,807.20 and 643,281.60 is: 964,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,204.80 : 1,468,807.20 = 643,281.60 : x
  2. Step 2: Convert to fraction form
    979,204.80/1,468,807.20 = 643,281.60/x
  3. Step 3: Cross multiply
    979,204.80x = 1,468,807.20 × 643,281.60
  4. Step 4: Simplify right side
    979,204.80x = 944,856,645,707.52
  5. Step 5: Solve for x
    x = 944,856,645,707.52/979,204.80
  6. Step 6: Final answer
    x = 964,922.40

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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.