Home / 1,298.44-1,947.96-432.76

Finding the Fourth Proportional to 1,298.44, 1,947.96 and 432.76

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Solution

The fourth proportional to 1,298.44, 1,947.96 and 432.76 is: 649.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.44 : 1,947.96 = 432.76 : x
  2. Step 2: Convert to fraction form
    1,298.44/1,947.96 = 432.76/x
  3. Step 3: Cross multiply
    1,298.44x = 1,947.96 × 432.76
  4. Step 4: Simplify right side
    1,298.44x = 842,999.17
  5. Step 5: Solve for x
    x = 842,999.17/1,298.44
  6. Step 6: Final answer
    x = 649.24

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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.