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Finding the Fourth Proportional to 632,160.86, 871,672.55 and 402,354.14

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Solution

The fourth proportional to 632,160.86, 871,672.55 and 402,354.14 is: 554,797.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,160.86 : 871,672.55 = 402,354.14 : x
  2. Step 2: Convert to fraction form
    632,160.86/871,672.55 = 402,354.14/x
  3. Step 3: Cross multiply
    632,160.86x = 871,672.55 × 402,354.14
  4. Step 4: Simplify right side
    632,160.86x = 350,721,052,846.72
  5. Step 5: Solve for x
    x = 350,721,052,846.72/632,160.86
  6. Step 6: Final answer
    x = 554,797.17

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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.