Home / 1,230,420.30-1,845,889.65-520,082.70

Finding the Fourth Proportional to 1,230,420.30, 1,845,889.65 and 520,082.70

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Solution

The fourth proportional to 1,230,420.30, 1,845,889.65 and 520,082.70 is: 780,233.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,420.30 : 1,845,889.65 = 520,082.70 : x
  2. Step 2: Convert to fraction form
    1,230,420.30/1,845,889.65 = 520,082.70/x
  3. Step 3: Cross multiply
    1,230,420.30x = 1,845,889.65 × 520,082.70
  4. Step 4: Simplify right side
    1,230,420.30x = 960,015,273,074.06
  5. Step 5: Solve for x
    x = 960,015,273,074.06/1,230,420.30
  6. Step 6: Final answer
    x = 780,233.61

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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.