Home / 813,331.65-1,219,764.20-314,579.01

Finding the Fourth Proportional to 813,331.65, 1,219,764.20 and 314,579.01

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Solution

The fourth proportional to 813,331.65, 1,219,764.20 and 314,579.01 is: 471,778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,331.65 : 1,219,764.20 = 314,579.01 : x
  2. Step 2: Convert to fraction form
    813,331.65/1,219,764.20 = 314,579.01/x
  3. Step 3: Cross multiply
    813,331.65x = 1,219,764.20 × 314,579.01
  4. Step 4: Simplify right side
    813,331.65x = 383,712,212,896.55
  5. Step 5: Solve for x
    x = 383,712,212,896.55/813,331.65
  6. Step 6: Final answer
    x = 471,778.29

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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.