Home / 788,660.10-1,182,990.15-220,040.10

Finding the Fourth Proportional to 788,660.10, 1,182,990.15 and 220,040.10

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Solution

The fourth proportional to 788,660.10, 1,182,990.15 and 220,040.10 is: 330,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,660.10 : 1,182,990.15 = 220,040.10 : x
  2. Step 2: Convert to fraction form
    788,660.10/1,182,990.15 = 220,040.10/x
  3. Step 3: Cross multiply
    788,660.10x = 1,182,990.15 × 220,040.10
  4. Step 4: Simplify right side
    788,660.10x = 260,305,270,905.02
  5. Step 5: Solve for x
    x = 260,305,270,905.02/788,660.10
  6. Step 6: Final answer
    x = 330,060.15

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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.