Home / 830,787.02-1,246,190.52-231,711.70

Finding the Fourth Proportional to 830,787.02, 1,246,190.52 and 231,711.70

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Solution

The fourth proportional to 830,787.02, 1,246,190.52 and 231,711.70 is: 347,570.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,787.02 : 1,246,190.52 = 231,711.70 : x
  2. Step 2: Convert to fraction form
    830,787.02/1,246,190.52 = 231,711.70/x
  3. Step 3: Cross multiply
    830,787.02x = 1,246,190.52 × 231,711.70
  4. Step 4: Simplify right side
    830,787.02x = 288,756,917,682.13
  5. Step 5: Solve for x
    x = 288,756,917,682.13/830,787.02
  6. Step 6: Final answer
    x = 347,570.33

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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.