Home / 787,215.20-1,180,822.80-337,859.60

Finding the Fourth Proportional to 787,215.20, 1,180,822.80 and 337,859.60

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Solution

The fourth proportional to 787,215.20, 1,180,822.80 and 337,859.60 is: 506,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,215.20 : 1,180,822.80 = 337,859.60 : x
  2. Step 2: Convert to fraction form
    787,215.20/1,180,822.80 = 337,859.60/x
  3. Step 3: Cross multiply
    787,215.20x = 1,180,822.80 × 337,859.60
  4. Step 4: Simplify right side
    787,215.20x = 398,952,318,878.88
  5. Step 5: Solve for x
    x = 398,952,318,878.88/787,215.20
  6. Step 6: Final answer
    x = 506,789.40

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1.5x scale

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.