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Finding the Fourth Proportional to 423,549, 584,628.84 and 272,646

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Solution

The fourth proportional to 423,549, 584,628.84 and 272,646 is: 376,335.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,549 : 584,628.84 = 272,646 : x
  2. Step 2: Convert to fraction form
    423,549/584,628.84 = 272,646/x
  3. Step 3: Cross multiply
    423,549x = 584,628.84 × 272,646
  4. Step 4: Simplify right side
    423,549x = 159,396,714,710.64
  5. Step 5: Solve for x
    x = 159,396,714,710.64/423,549
  6. Step 6: Final answer
    x = 376,335.95

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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.