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Finding the Fourth Proportional to 662,803.92, 914,733 and 408,304.08

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Solution

The fourth proportional to 662,803.92, 914,733 and 408,304.08 is: 563,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,803.92 : 914,733 = 408,304.08 : x
  2. Step 2: Convert to fraction form
    662,803.92/914,733 = 408,304.08/x
  3. Step 3: Cross multiply
    662,803.92x = 914,733 × 408,304.08
  4. Step 4: Simplify right side
    662,803.92x = 373,489,216,010.64
  5. Step 5: Solve for x
    x = 373,489,216,010.64/662,803.92
  6. Step 6: Final answer
    x = 563,498.80

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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.