Home / 749,621.64-1,123,382.68-394,102.92

Finding the Fourth Proportional to 749,621.64, 1,123,382.68 and 394,102.92

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Solution

The fourth proportional to 749,621.64, 1,123,382.68 and 394,102.92 is: 590,602.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,621.64 : 1,123,382.68 = 394,102.92 : x
  2. Step 2: Convert to fraction form
    749,621.64/1,123,382.68 = 394,102.92/x
  3. Step 3: Cross multiply
    749,621.64x = 1,123,382.68 × 394,102.92
  4. Step 4: Simplify right side
    749,621.64x = 442,728,394,465.43
  5. Step 5: Solve for x
    x = 442,728,394,465.43/749,621.64
  6. Step 6: Final answer
    x = 590,602.47

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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.