Home / 788,146.80-1,182,511.80-255,685.20

Finding the Fourth Proportional to 788,146.80, 1,182,511.80 and 255,685.20

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Solution

The fourth proportional to 788,146.80, 1,182,511.80 and 255,685.20 is: 383,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,146.80 : 1,182,511.80 = 255,685.20 : x
  2. Step 2: Convert to fraction form
    788,146.80/1,182,511.80 = 255,685.20/x
  3. Step 3: Cross multiply
    788,146.80x = 1,182,511.80 × 255,685.20
  4. Step 4: Simplify right side
    788,146.80x = 302,350,766,085.36
  5. Step 5: Solve for x
    x = 302,350,766,085.36/788,146.80
  6. Step 6: Final answer
    x = 383,622.40

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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.