Home / 1,386,107.80-2,078,262.60-587,172.40

Finding the Fourth Proportional to 1,386,107.80, 2,078,262.60 and 587,172.40

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Solution

The fourth proportional to 1,386,107.80, 2,078,262.60 and 587,172.40 is: 880,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,107.80 : 2,078,262.60 = 587,172.40 : x
  2. Step 2: Convert to fraction form
    1,386,107.80/2,078,262.60 = 587,172.40/x
  3. Step 3: Cross multiply
    1,386,107.80x = 2,078,262.60 × 587,172.40
  4. Step 4: Simplify right side
    1,386,107.80x = 1,220,298,438,672.24
  5. Step 5: Solve for x
    x = 1,220,298,438,672.24/1,386,107.80
  6. Step 6: Final answer
    x = 880,377.73

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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.