Home / 828,002.20-1,242,003.30-560,313.40

Finding the Fourth Proportional to 828,002.20, 1,242,003.30 and 560,313.40

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Solution

The fourth proportional to 828,002.20, 1,242,003.30 and 560,313.40 is: 840,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,002.20 : 1,242,003.30 = 560,313.40 : x
  2. Step 2: Convert to fraction form
    828,002.20/1,242,003.30 = 560,313.40/x
  3. Step 3: Cross multiply
    828,002.20x = 1,242,003.30 × 560,313.40
  4. Step 4: Simplify right side
    828,002.20x = 695,911,091,834.22
  5. Step 5: Solve for x
    x = 695,911,091,834.22/828,002.20
  6. Step 6: Final answer
    x = 840,470.10

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Double scale
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Similar ratio
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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.