Home / 1,092,610.40-1,638,915.60-672,123.20

Finding the Fourth Proportional to 1,092,610.40, 1,638,915.60 and 672,123.20

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Solution

The fourth proportional to 1,092,610.40, 1,638,915.60 and 672,123.20 is: 1,008,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,610.40 : 1,638,915.60 = 672,123.20 : x
  2. Step 2: Convert to fraction form
    1,092,610.40/1,638,915.60 = 672,123.20/x
  3. Step 3: Cross multiply
    1,092,610.40x = 1,638,915.60 × 672,123.20
  4. Step 4: Simplify right side
    1,092,610.40x = 1,101,553,197,601.92
  5. Step 5: Solve for x
    x = 1,101,553,197,601.92/1,092,610.40
  6. Step 6: Final answer
    x = 1,008,184.80

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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.