Home / 950,143.74-1,311,151.59-520,425.78

Finding the Fourth Proportional to 950,143.74, 1,311,151.59 and 520,425.78

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Solution

The fourth proportional to 950,143.74, 1,311,151.59 and 520,425.78 is: 718,161.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,143.74 : 1,311,151.59 = 520,425.78 : x
  2. Step 2: Convert to fraction form
    950,143.74/1,311,151.59 = 520,425.78/x
  3. Step 3: Cross multiply
    950,143.74x = 1,311,151.59 × 520,425.78
  4. Step 4: Simplify right side
    950,143.74x = 682,357,088,923.99
  5. Step 5: Solve for x
    x = 682,357,088,923.99/950,143.74
  6. Step 6: Final answer
    x = 718,161.96

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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.