Home / 950,543.40-1,311,780.36-520,850.88

Finding the Fourth Proportional to 950,543.40, 1,311,780.36 and 520,850.88

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Solution

The fourth proportional to 950,543.40, 1,311,780.36 and 520,850.88 is: 718,790.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,543.40 : 1,311,780.36 = 520,850.88 : x
  2. Step 2: Convert to fraction form
    950,543.40/1,311,780.36 = 520,850.88/x
  3. Step 3: Cross multiply
    950,543.40x = 1,311,780.36 × 520,850.88
  4. Step 4: Simplify right side
    950,543.40x = 683,241,954,872.72
  5. Step 5: Solve for x
    x = 683,241,954,872.72/950,543.40
  6. Step 6: Final answer
    x = 718,790.91

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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.