Home / 755,785.92-1,043,486.40-469,732.80

Finding the Fourth Proportional to 755,785.92, 1,043,486.40 and 469,732.80

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Solution

The fourth proportional to 755,785.92, 1,043,486.40 and 469,732.80 is: 648,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,785.92 : 1,043,486.40 = 469,732.80 : x
  2. Step 2: Convert to fraction form
    755,785.92/1,043,486.40 = 469,732.80/x
  3. Step 3: Cross multiply
    755,785.92x = 1,043,486.40 × 469,732.80
  4. Step 4: Simplify right side
    755,785.92x = 490,159,788,433.92
  5. Step 5: Solve for x
    x = 490,159,788,433.92/755,785.92
  6. Step 6: Final answer
    x = 648,543.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.