Home / 702,108.55-1,053,753.63-657,821.80

Finding the Fourth Proportional to 702,108.55, 1,053,753.63 and 657,821.80

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Solution

The fourth proportional to 702,108.55, 1,053,753.63 and 657,821.80 is: 987,286.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,108.55 : 1,053,753.63 = 657,821.80 : x
  2. Step 2: Convert to fraction form
    702,108.55/1,053,753.63 = 657,821.80/x
  3. Step 3: Cross multiply
    702,108.55x = 1,053,753.63 × 657,821.80
  4. Step 4: Simplify right side
    702,108.55x = 693,182,109,643.13
  5. Step 5: Solve for x
    x = 693,182,109,643.13/702,108.55
  6. Step 6: Final answer
    x = 987,286.24

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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.