Home / 427,577.61-641,552.43-268,019.18

Finding the Fourth Proportional to 427,577.61, 641,552.43 and 268,019.18

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Solution

The fourth proportional to 427,577.61, 641,552.43 and 268,019.18 is: 402,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,577.61 : 641,552.43 = 268,019.18 : x
  2. Step 2: Convert to fraction form
    427,577.61/641,552.43 = 268,019.18/x
  3. Step 3: Cross multiply
    427,577.61x = 641,552.43 × 268,019.18
  4. Step 4: Simplify right side
    427,577.61x = 171,948,353,007.85
  5. Step 5: Solve for x
    x = 171,948,353,007.85/427,577.61
  6. Step 6: Final answer
    x = 402,145.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.