Home / 1,098,103.65-1,646,663.40-423,960.90

Finding the Fourth Proportional to 1,098,103.65, 1,646,663.40 and 423,960.90

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Solution

The fourth proportional to 1,098,103.65, 1,646,663.40 and 423,960.90 is: 635,751.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,103.65 : 1,646,663.40 = 423,960.90 : x
  2. Step 2: Convert to fraction form
    1,098,103.65/1,646,663.40 = 423,960.90/x
  3. Step 3: Cross multiply
    1,098,103.65x = 1,646,663.40 × 423,960.90
  4. Step 4: Simplify right side
    1,098,103.65x = 698,120,897,061.06
  5. Step 5: Solve for x
    x = 698,120,897,061.06/1,098,103.65
  6. Step 6: Final answer
    x = 635,751.37

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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.