Home / 785,333.22-1,083,731.14-479,920.80

Finding the Fourth Proportional to 785,333.22, 1,083,731.14 and 479,920.80

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Solution

The fourth proportional to 785,333.22, 1,083,731.14 and 479,920.80 is: 662,273.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,333.22 : 1,083,731.14 = 479,920.80 : x
  2. Step 2: Convert to fraction form
    785,333.22/1,083,731.14 = 479,920.80/x
  3. Step 3: Cross multiply
    785,333.22x = 1,083,731.14 × 479,920.80
  4. Step 4: Simplify right side
    785,333.22x = 520,105,115,693.71
  5. Step 5: Solve for x
    x = 520,105,115,693.71/785,333.22
  6. Step 6: Final answer
    x = 662,273.16

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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.