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Finding the Fourth Proportional to 453,411.70, 679,534.35 and 275,730.10

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Solution

The fourth proportional to 453,411.70, 679,534.35 and 275,730.10 is: 413,240.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,411.70 : 679,534.35 = 275,730.10 : x
  2. Step 2: Convert to fraction form
    453,411.70/679,534.35 = 275,730.10/x
  3. Step 3: Cross multiply
    453,411.70x = 679,534.35 × 275,730.10
  4. Step 4: Simplify right side
    453,411.70x = 187,368,074,278.94
  5. Step 5: Solve for x
    x = 187,368,074,278.94/453,411.70
  6. Step 6: Final answer
    x = 413,240.49

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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.