Home / 663,254.29-915,031.07-408,162.61

Finding the Fourth Proportional to 663,254.29, 915,031.07 and 408,162.61

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Solution

The fourth proportional to 663,254.29, 915,031.07 and 408,162.61 is: 563,104.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,254.29 : 915,031.07 = 408,162.61 : x
  2. Step 2: Convert to fraction form
    663,254.29/915,031.07 = 408,162.61/x
  3. Step 3: Cross multiply
    663,254.29x = 915,031.07 × 408,162.61
  4. Step 4: Simplify right side
    663,254.29x = 373,481,469,762.29
  5. Step 5: Solve for x
    x = 373,481,469,762.29/663,254.29
  6. Step 6: Final answer
    x = 563,104.49

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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.