Home / 813,328.65-1,219,759.70-314,576.01

Finding the Fourth Proportional to 813,328.65, 1,219,759.70 and 314,576.01

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Solution

The fourth proportional to 813,328.65, 1,219,759.70 and 314,576.01 is: 471,773.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,328.65 : 1,219,759.70 = 314,576.01 : x
  2. Step 2: Convert to fraction form
    813,328.65/1,219,759.70 = 314,576.01/x
  3. Step 3: Cross multiply
    813,328.65x = 1,219,759.70 × 314,576.01
  4. Step 4: Simplify right side
    813,328.65x = 383,707,138,011.92
  5. Step 5: Solve for x
    x = 383,707,138,011.92/813,328.65
  6. Step 6: Final answer
    x = 471,773.79

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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.