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Finding the Fourth Proportional to 631,587.80, 871,494.54 and 359,666.84

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Solution

The fourth proportional to 631,587.80, 871,494.54 and 359,666.84 is: 496,285.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,587.80 : 871,494.54 = 359,666.84 : x
  2. Step 2: Convert to fraction form
    631,587.80/871,494.54 = 359,666.84/x
  3. Step 3: Cross multiply
    631,587.80x = 871,494.54 × 359,666.84
  4. Step 4: Simplify right side
    631,587.80x = 313,447,687,279.05
  5. Step 5: Solve for x
    x = 313,447,687,279.05/631,587.80
  6. Step 6: Final answer
    x = 496,285.22

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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.