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Finding the Fourth Proportional to 489,973.44, 676,146.24 and 299,305.92

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Solution

The fourth proportional to 489,973.44, 676,146.24 and 299,305.92 is: 413,031.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,973.44 : 676,146.24 = 299,305.92 : x
  2. Step 2: Convert to fraction form
    489,973.44/676,146.24 = 299,305.92/x
  3. Step 3: Cross multiply
    489,973.44x = 676,146.24 × 299,305.92
  4. Step 4: Simplify right side
    489,973.44x = 202,374,572,417.74
  5. Step 5: Solve for x
    x = 202,374,572,417.74/489,973.44
  6. Step 6: Final answer
    x = 413,031.72

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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.