Home / 843,251.40-1,264,439.70-310,498.20

Finding the Fourth Proportional to 843,251.40, 1,264,439.70 and 310,498.20

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Solution

The fourth proportional to 843,251.40, 1,264,439.70 and 310,498.20 is: 465,586.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,251.40 : 1,264,439.70 = 310,498.20 : x
  2. Step 2: Convert to fraction form
    843,251.40/1,264,439.70 = 310,498.20/x
  3. Step 3: Cross multiply
    843,251.40x = 1,264,439.70 × 310,498.20
  4. Step 4: Simplify right side
    843,251.40x = 392,606,250,858.54
  5. Step 5: Solve for x
    x = 392,606,250,858.54/843,251.40
  6. Step 6: Final answer
    x = 465,586.24

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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.