Home / 842,722.96-1,264,210.30-310,203.48

Finding the Fourth Proportional to 842,722.96, 1,264,210.30 and 310,203.48

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Solution

The fourth proportional to 842,722.96, 1,264,210.30 and 310,203.48 is: 465,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,722.96 : 1,264,210.30 = 310,203.48 : x
  2. Step 2: Convert to fraction form
    842,722.96/1,264,210.30 = 310,203.48/x
  3. Step 3: Cross multiply
    842,722.96x = 1,264,210.30 × 310,203.48
  4. Step 4: Simplify right side
    842,722.96x = 392,162,434,511.84
  5. Step 5: Solve for x
    x = 392,162,434,511.84/842,722.96
  6. Step 6: Final answer
    x = 465,351.55

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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.