Home / 779,815.80-1,167,390.90-686,503.80

Finding the Fourth Proportional to 779,815.80, 1,167,390.90 and 686,503.80

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Solution

The fourth proportional to 779,815.80, 1,167,390.90 and 686,503.80 is: 1,027,702.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,815.80 : 1,167,390.90 = 686,503.80 : x
  2. Step 2: Convert to fraction form
    779,815.80/1,167,390.90 = 686,503.80/x
  3. Step 3: Cross multiply
    779,815.80x = 1,167,390.90 × 686,503.80
  4. Step 4: Simplify right side
    779,815.80x = 801,418,288,935.42
  5. Step 5: Solve for x
    x = 801,418,288,935.42/779,815.80
  6. Step 6: Final answer
    x = 1,027,702.04

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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.