Home / 830,002.10-1,245,003.15-823,781.30

Finding the Fourth Proportional to 830,002.10, 1,245,003.15 and 823,781.30

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Solution

The fourth proportional to 830,002.10, 1,245,003.15 and 823,781.30 is: 1,235,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,002.10 : 1,245,003.15 = 823,781.30 : x
  2. Step 2: Convert to fraction form
    830,002.10/1,245,003.15 = 823,781.30/x
  3. Step 3: Cross multiply
    830,002.10x = 1,245,003.15 × 823,781.30
  4. Step 4: Simplify right side
    830,002.10x = 1,025,610,313,411.10
  5. Step 5: Solve for x
    x = 1,025,610,313,411.10/830,002.10
  6. Step 6: Final answer
    x = 1,235,671.95

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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.