Home / 427,564.07-641,532.17-268,005.68

Finding the Fourth Proportional to 427,564.07, 641,532.17 and 268,005.68

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Solution

The fourth proportional to 427,564.07, 641,532.17 and 268,005.68 is: 402,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,564.07 : 641,532.17 = 268,005.68 : x
  2. Step 2: Convert to fraction form
    427,564.07/641,532.17 = 268,005.68/x
  3. Step 3: Cross multiply
    427,564.07x = 641,532.17 × 268,005.68
  4. Step 4: Simplify right side
    427,564.07x = 171,934,265,330.83
  5. Step 5: Solve for x
    x = 171,934,265,330.83/427,564.07
  6. Step 6: Final answer
    x = 402,125.15

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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.