Home / 1,124,851.40-1,687,425.10-415,377.80

Finding the Fourth Proportional to 1,124,851.40, 1,687,425.10 and 415,377.80

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Solution

The fourth proportional to 1,124,851.40, 1,687,425.10 and 415,377.80 is: 623,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,851.40 : 1,687,425.10 = 415,377.80 : x
  2. Step 2: Convert to fraction form
    1,124,851.40/1,687,425.10 = 415,377.80/x
  3. Step 3: Cross multiply
    1,124,851.40x = 1,687,425.10 × 415,377.80
  4. Step 4: Simplify right side
    1,124,851.40x = 700,918,925,702.78
  5. Step 5: Solve for x
    x = 700,918,925,702.78/1,124,851.40
  6. Step 6: Final answer
    x = 623,121.35

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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.