Home / 653,655.03-902,142.14-399,153.03

Finding the Fourth Proportional to 653,655.03, 902,142.14 and 399,153.03

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Solution

The fourth proportional to 653,655.03, 902,142.14 and 399,153.03 is: 550,891.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,655.03 : 902,142.14 = 399,153.03 : x
  2. Step 2: Convert to fraction form
    653,655.03/902,142.14 = 399,153.03/x
  3. Step 3: Cross multiply
    653,655.03x = 902,142.14 × 399,153.03
  4. Step 4: Simplify right side
    653,655.03x = 360,092,766,675.92
  5. Step 5: Solve for x
    x = 360,092,766,675.92/653,655.03
  6. Step 6: Final answer
    x = 550,891.14

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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.