Home / 730,891.06-1,008,636.84-408,618.78

Finding the Fourth Proportional to 730,891.06, 1,008,636.84 and 408,618.78

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Solution

The fourth proportional to 730,891.06, 1,008,636.84 and 408,618.78 is: 563,897.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,891.06 : 1,008,636.84 = 408,618.78 : x
  2. Step 2: Convert to fraction form
    730,891.06/1,008,636.84 = 408,618.78/x
  3. Step 3: Cross multiply
    730,891.06x = 1,008,636.84 × 408,618.78
  4. Step 4: Simplify right side
    730,891.06x = 412,147,955,023.86
  5. Step 5: Solve for x
    x = 412,147,955,023.86/730,891.06
  6. Step 6: Final answer
    x = 563,897.93

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1.5x scale

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.