Home / 842,443.80-1,264,011.30-310,219.80

Finding the Fourth Proportional to 842,443.80, 1,264,011.30 and 310,219.80

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Solution

The fourth proportional to 842,443.80, 1,264,011.30 and 310,219.80 is: 465,456.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,443.80 : 1,264,011.30 = 310,219.80 : x
  2. Step 2: Convert to fraction form
    842,443.80/1,264,011.30 = 310,219.80/x
  3. Step 3: Cross multiply
    842,443.80x = 1,264,011.30 × 310,219.80
  4. Step 4: Simplify right side
    842,443.80x = 392,121,332,683.74
  5. Step 5: Solve for x
    x = 392,121,332,683.74/842,443.80
  6. Step 6: Final answer
    x = 465,456.96

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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.