Home / 1,319,049.20-1,977,115.80-520,065.20

Finding the Fourth Proportional to 1,319,049.20, 1,977,115.80 and 520,065.20

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Solution

The fourth proportional to 1,319,049.20, 1,977,115.80 and 520,065.20 is: 779,522.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,049.20 : 1,977,115.80 = 520,065.20 : x
  2. Step 2: Convert to fraction form
    1,319,049.20/1,977,115.80 = 520,065.20/x
  3. Step 3: Cross multiply
    1,319,049.20x = 1,977,115.80 × 520,065.20
  4. Step 4: Simplify right side
    1,319,049.20x = 1,028,229,123,950.16
  5. Step 5: Solve for x
    x = 1,028,229,123,950.16/1,319,049.20
  6. Step 6: Final answer
    x = 779,522.95

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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.