Home / 838,712.36-1,157,471.70-631,610

Finding the Fourth Proportional to 838,712.36, 1,157,471.70 and 631,610

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Solution

The fourth proportional to 838,712.36, 1,157,471.70 and 631,610 is: 871,658.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,712.36 : 1,157,471.70 = 631,610 : x
  2. Step 2: Convert to fraction form
    838,712.36/1,157,471.70 = 631,610/x
  3. Step 3: Cross multiply
    838,712.36x = 1,157,471.70 × 631,610
  4. Step 4: Simplify right side
    838,712.36x = 731,070,700,437
  5. Step 5: Solve for x
    x = 731,070,700,437/838,712.36
  6. Step 6: Final answer
    x = 871,658.43

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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.