Home / 421,578.61-581,968.46-268,822.13

Finding the Fourth Proportional to 421,578.61, 581,968.46 and 268,822.13

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Solution

The fourth proportional to 421,578.61, 581,968.46 and 268,822.13 is: 371,095.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,578.61 : 581,968.46 = 268,822.13 : x
  2. Step 2: Convert to fraction form
    421,578.61/581,968.46 = 268,822.13/x
  3. Step 3: Cross multiply
    421,578.61x = 581,968.46 × 268,822.13
  4. Step 4: Simplify right side
    421,578.61x = 156,445,998,772.23
  5. Step 5: Solve for x
    x = 156,445,998,772.23/421,578.61
  6. Step 6: Final answer
    x = 371,095.68

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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.