Home / 631,451.49-871,443.27-359,543.13

Finding the Fourth Proportional to 631,451.49, 871,443.27 and 359,543.13

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Solution

The fourth proportional to 631,451.49, 871,443.27 and 359,543.13 is: 496,192.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,451.49 : 871,443.27 = 359,543.13 : x
  2. Step 2: Convert to fraction form
    631,451.49/871,443.27 = 359,543.13/x
  3. Step 3: Cross multiply
    631,451.49x = 871,443.27 × 359,543.13
  4. Step 4: Simplify right side
    631,451.49x = 313,321,440,913.24
  5. Step 5: Solve for x
    x = 313,321,440,913.24/631,451.49
  6. Step 6: Final answer
    x = 496,192.42

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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.