Home / 788,690.30-1,182,743.85-256,228.70

Finding the Fourth Proportional to 788,690.30, 1,182,743.85 and 256,228.70

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Solution

The fourth proportional to 788,690.30, 1,182,743.85 and 256,228.70 is: 384,248.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,690.30 : 1,182,743.85 = 256,228.70 : x
  2. Step 2: Convert to fraction form
    788,690.30/1,182,743.85 = 256,228.70/x
  3. Step 3: Cross multiply
    788,690.30x = 1,182,743.85 × 256,228.70
  4. Step 4: Simplify right side
    788,690.30x = 303,052,919,118.50
  5. Step 5: Solve for x
    x = 303,052,919,118.50/788,690.30
  6. Step 6: Final answer
    x = 384,248.32

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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.