Home / 753,289.06-1,039,546.42-409,131.72

Finding the Fourth Proportional to 753,289.06, 1,039,546.42 and 409,131.72

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Solution

The fourth proportional to 753,289.06, 1,039,546.42 and 409,131.72 is: 564,605.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,289.06 : 1,039,546.42 = 409,131.72 : x
  2. Step 2: Convert to fraction form
    753,289.06/1,039,546.42 = 409,131.72/x
  3. Step 3: Cross multiply
    753,289.06x = 1,039,546.42 × 409,131.72
  4. Step 4: Simplify right side
    753,289.06x = 425,311,414,834.44
  5. Step 5: Solve for x
    x = 425,311,414,834.44/753,289.06
  6. Step 6: Final answer
    x = 564,605.86

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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.