Home / 819,822.64-1,229,909.04-287,376.16

Finding the Fourth Proportional to 819,822.64, 1,229,909.04 and 287,376.16

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Solution

The fourth proportional to 819,822.64, 1,229,909.04 and 287,376.16 is: 431,125.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,822.64 : 1,229,909.04 = 287,376.16 : x
  2. Step 2: Convert to fraction form
    819,822.64/1,229,909.04 = 287,376.16/x
  3. Step 3: Cross multiply
    819,822.64x = 1,229,909.04 × 287,376.16
  4. Step 4: Simplify right side
    819,822.64x = 353,446,537,064.49
  5. Step 5: Solve for x
    x = 353,446,537,064.49/819,822.64
  6. Step 6: Final answer
    x = 431,125.61

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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.