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Finding the Fourth Proportional to 449,555.27, 671,053.57 and 392,803.63

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Solution

The fourth proportional to 449,555.27, 671,053.57 and 392,803.63 is: 586,340.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,555.27 : 671,053.57 = 392,803.63 : x
  2. Step 2: Convert to fraction form
    449,555.27/671,053.57 = 392,803.63/x
  3. Step 3: Cross multiply
    449,555.27x = 671,053.57 × 392,803.63
  4. Step 4: Simplify right side
    449,555.27x = 263,592,275,560.82
  5. Step 5: Solve for x
    x = 263,592,275,560.82/449,555.27
  6. Step 6: Final answer
    x = 586,340.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.