Home / 842,727.60-1,264,217.40-310,208.04

Finding the Fourth Proportional to 842,727.60, 1,264,217.40 and 310,208.04

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Solution

The fourth proportional to 842,727.60, 1,264,217.40 and 310,208.04 is: 465,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,727.60 : 1,264,217.40 = 310,208.04 : x
  2. Step 2: Convert to fraction form
    842,727.60/1,264,217.40 = 310,208.04/x
  3. Step 3: Cross multiply
    842,727.60x = 1,264,217.40 × 310,208.04
  4. Step 4: Simplify right side
    842,727.60x = 392,170,401,787.90
  5. Step 5: Solve for x
    x = 392,170,401,787.90/842,727.60
  6. Step 6: Final answer
    x = 465,358.44

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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.