Home / 950,123.36-1,311,170.40-520,418.86

Finding the Fourth Proportional to 950,123.36, 1,311,170.40 and 520,418.86

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Solution

The fourth proportional to 950,123.36, 1,311,170.40 and 520,418.86 is: 718,178.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,123.36 : 1,311,170.40 = 520,418.86 : x
  2. Step 2: Convert to fraction form
    950,123.36/1,311,170.40 = 520,418.86/x
  3. Step 3: Cross multiply
    950,123.36x = 1,311,170.40 × 520,418.86
  4. Step 4: Simplify right side
    950,123.36x = 682,357,807,819.20
  5. Step 5: Solve for x
    x = 682,357,807,819.20/950,123.36
  6. Step 6: Final answer
    x = 718,178.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.