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Finding the Fourth Proportional to 389,486, 584,229 and 93,998

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Solution

The fourth proportional to 389,486, 584,229 and 93,998 is: 140,997

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,486 : 584,229 = 93,998 : x
  2. Step 2: Convert to fraction form
    389,486/584,229 = 93,998/x
  3. Step 3: Cross multiply
    389,486x = 584,229 × 93,998
  4. Step 4: Simplify right side
    389,486x = 54,916,357,542
  5. Step 5: Solve for x
    x = 54,916,357,542/389,486
  6. Step 6: Final answer
    x = 140,997

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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.