Home / 709,882.10-979,521.74-419,453.28

Finding the Fourth Proportional to 709,882.10, 979,521.74 and 419,453.28

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Solution

The fourth proportional to 709,882.10, 979,521.74 and 419,453.28 is: 578,777.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,882.10 : 979,521.74 = 419,453.28 : x
  2. Step 2: Convert to fraction form
    709,882.10/979,521.74 = 419,453.28/x
  3. Step 3: Cross multiply
    709,882.10x = 979,521.74 × 419,453.28
  4. Step 4: Simplify right side
    709,882.10x = 410,863,601,776.70
  5. Step 5: Solve for x
    x = 410,863,601,776.70/709,882.10
  6. Step 6: Final answer
    x = 578,777.24

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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.