Home / 1,052,138.70-1,579,244.85-520,260.30

Finding the Fourth Proportional to 1,052,138.70, 1,579,244.85 and 520,260.30

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Solution

The fourth proportional to 1,052,138.70, 1,579,244.85 and 520,260.30 is: 780,903.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052,138.70 : 1,579,244.85 = 520,260.30 : x
  2. Step 2: Convert to fraction form
    1,052,138.70/1,579,244.85 = 520,260.30/x
  3. Step 3: Cross multiply
    1,052,138.70x = 1,579,244.85 × 520,260.30
  4. Step 4: Simplify right side
    1,052,138.70x = 821,618,399,434.46
  5. Step 5: Solve for x
    x = 821,618,399,434.46/1,052,138.70
  6. Step 6: Final answer
    x = 780,903.13

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Double scale
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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.