Home / 631,827.36-871,920.50-359,895.15

Finding the Fourth Proportional to 631,827.36, 871,920.50 and 359,895.15

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Solution

The fourth proportional to 631,827.36, 871,920.50 and 359,895.15 is: 496,654.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,827.36 : 871,920.50 = 359,895.15 : x
  2. Step 2: Convert to fraction form
    631,827.36/871,920.50 = 359,895.15/x
  3. Step 3: Cross multiply
    631,827.36x = 871,920.50 × 359,895.15
  4. Step 4: Simplify right side
    631,827.36x = 313,799,957,336.10
  5. Step 5: Solve for x
    x = 313,799,957,336.10/631,827.36
  6. Step 6: Final answer
    x = 496,654.59

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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.