Home / 1,124,818.40-1,687,375.60-415,344.80

Finding the Fourth Proportional to 1,124,818.40, 1,687,375.60 and 415,344.80

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Solution

The fourth proportional to 1,124,818.40, 1,687,375.60 and 415,344.80 is: 623,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,818.40 : 1,687,375.60 = 415,344.80 : x
  2. Step 2: Convert to fraction form
    1,124,818.40/1,687,375.60 = 415,344.80/x
  3. Step 3: Cross multiply
    1,124,818.40x = 1,687,375.60 × 415,344.80
  4. Step 4: Simplify right side
    1,124,818.40x = 700,842,681,106.88
  5. Step 5: Solve for x
    x = 700,842,681,106.88/1,124,818.40
  6. Step 6: Final answer
    x = 623,071.85

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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.