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Finding the Fourth Proportional to 631,748.74, 871,869.45 and 359,757.22

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Solution

The fourth proportional to 631,748.74, 871,869.45 and 359,757.22 is: 496,496.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,748.74 : 871,869.45 = 359,757.22 : x
  2. Step 2: Convert to fraction form
    631,748.74/871,869.45 = 359,757.22/x
  3. Step 3: Cross multiply
    631,748.74x = 871,869.45 × 359,757.22
  4. Step 4: Simplify right side
    631,748.74x = 313,661,329,534.93
  5. Step 5: Solve for x
    x = 313,661,329,534.93/631,748.74
  6. Step 6: Final answer
    x = 496,496.96

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Double scale
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1.5x scale

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.