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Finding the Fourth Proportional to 891,363.84, 1,337,172.72 and 292,371.72

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Solution

The fourth proportional to 891,363.84, 1,337,172.72 and 292,371.72 is: 438,599.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,363.84 : 1,337,172.72 = 292,371.72 : x
  2. Step 2: Convert to fraction form
    891,363.84/1,337,172.72 = 292,371.72/x
  3. Step 3: Cross multiply
    891,363.84x = 1,337,172.72 × 292,371.72
  4. Step 4: Simplify right side
    891,363.84x = 390,951,488,083.48
  5. Step 5: Solve for x
    x = 390,951,488,083.48/891,363.84
  6. Step 6: Final answer
    x = 438,599.22

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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.