Home / 702,078.30-1,053,117.45-613,504.80

Finding the Fourth Proportional to 702,078.30, 1,053,117.45 and 613,504.80

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Solution

The fourth proportional to 702,078.30, 1,053,117.45 and 613,504.80 is: 920,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,078.30 : 1,053,117.45 = 613,504.80 : x
  2. Step 2: Convert to fraction form
    702,078.30/1,053,117.45 = 613,504.80/x
  3. Step 3: Cross multiply
    702,078.30x = 1,053,117.45 × 613,504.80
  4. Step 4: Simplify right side
    702,078.30x = 646,092,610,538.76
  5. Step 5: Solve for x
    x = 646,092,610,538.76/702,078.30
  6. Step 6: Final answer
    x = 920,257.20

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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.