Home / 749,619.64-1,123,379.68-394,100.92

Finding the Fourth Proportional to 749,619.64, 1,123,379.68 and 394,100.92

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Solution

The fourth proportional to 749,619.64, 1,123,379.68 and 394,100.92 is: 590,599.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,619.64 : 1,123,379.68 = 394,100.92 : x
  2. Step 2: Convert to fraction form
    749,619.64/1,123,379.68 = 394,100.92/x
  3. Step 3: Cross multiply
    749,619.64x = 1,123,379.68 × 394,100.92
  4. Step 4: Simplify right side
    749,619.64x = 442,724,965,397.31
  5. Step 5: Solve for x
    x = 442,724,965,397.31/749,619.64
  6. Step 6: Final answer
    x = 590,599.47

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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.