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Finding the Fourth Proportional to 612,167.20, 844,547.82 and 353,996.44

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Solution

The fourth proportional to 612,167.20, 844,547.82 and 353,996.44 is: 488,374.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,167.20 : 844,547.82 = 353,996.44 : x
  2. Step 2: Convert to fraction form
    612,167.20/844,547.82 = 353,996.44/x
  3. Step 3: Cross multiply
    612,167.20x = 844,547.82 × 353,996.44
  4. Step 4: Simplify right side
    612,167.20x = 298,966,921,689.76
  5. Step 5: Solve for x
    x = 298,966,921,689.76/612,167.20
  6. Step 6: Final answer
    x = 488,374.62

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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.