Home / 810,004.20-1,215,006.30-573,613.80

Finding the Fourth Proportional to 810,004.20, 1,215,006.30 and 573,613.80

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Solution

The fourth proportional to 810,004.20, 1,215,006.30 and 573,613.80 is: 860,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,004.20 : 1,215,006.30 = 573,613.80 : x
  2. Step 2: Convert to fraction form
    810,004.20/1,215,006.30 = 573,613.80/x
  3. Step 3: Cross multiply
    810,004.20x = 1,215,006.30 × 573,613.80
  4. Step 4: Simplify right side
    810,004.20x = 696,944,380,766.94
  5. Step 5: Solve for x
    x = 696,944,380,766.94/810,004.20
  6. Step 6: Final answer
    x = 860,420.70

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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.