Home / 747,319.38-1,120,947.70-347,822.74

Finding the Fourth Proportional to 747,319.38, 1,120,947.70 and 347,822.74

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Solution

The fourth proportional to 747,319.38, 1,120,947.70 and 347,822.74 is: 521,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,319.38 : 1,120,947.70 = 347,822.74 : x
  2. Step 2: Convert to fraction form
    747,319.38/1,120,947.70 = 347,822.74/x
  3. Step 3: Cross multiply
    747,319.38x = 1,120,947.70 × 347,822.74
  4. Step 4: Simplify right side
    747,319.38x = 389,891,100,410.70
  5. Step 5: Solve for x
    x = 389,891,100,410.70/747,319.38
  6. Step 6: Final answer
    x = 521,719.51

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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.