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Finding the Fourth Proportional to 449,833.77, 674,417.34 and 272,298.78

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Solution

The fourth proportional to 449,833.77, 674,417.34 and 272,298.78 is: 408,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,833.77 : 674,417.34 = 272,298.78 : x
  2. Step 2: Convert to fraction form
    449,833.77/674,417.34 = 272,298.78/x
  3. Step 3: Cross multiply
    449,833.77x = 674,417.34 × 272,298.78
  4. Step 4: Simplify right side
    449,833.77x = 183,643,018,892.85
  5. Step 5: Solve for x
    x = 183,643,018,892.85/449,833.77
  6. Step 6: Final answer
    x = 408,246.40

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1.5x scale

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.