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Finding the Fourth Proportional to 442,400.98, 660,371.77 and 379,624.51

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Solution

The fourth proportional to 442,400.98, 660,371.77 and 379,624.51 is: 566,665.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,400.98 : 660,371.77 = 379,624.51 : x
  2. Step 2: Convert to fraction form
    442,400.98/660,371.77 = 379,624.51/x
  3. Step 3: Cross multiply
    442,400.98x = 660,371.77 × 379,624.51
  4. Step 4: Simplify right side
    442,400.98x = 250,693,309,604.08
  5. Step 5: Solve for x
    x = 250,693,309,604.08/442,400.98
  6. Step 6: Final answer
    x = 566,665.36

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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.