Home / 1,125,200.40-1,687,618.68-415,562.64

Finding the Fourth Proportional to 1,125,200.40, 1,687,618.68 and 415,562.64

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Solution

The fourth proportional to 1,125,200.40, 1,687,618.68 and 415,562.64 is: 623,276.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,200.40 : 1,687,618.68 = 415,562.64 : x
  2. Step 2: Convert to fraction form
    1,125,200.40/1,687,618.68 = 415,562.64/x
  3. Step 3: Cross multiply
    1,125,200.40x = 1,687,618.68 × 415,562.64
  4. Step 4: Simplify right side
    1,125,200.40x = 701,311,273,974.12
  5. Step 5: Solve for x
    x = 701,311,273,974.12/1,125,200.40
  6. Step 6: Final answer
    x = 623,276.77

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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.