Home / 788,855.80-1,182,992.10-256,394.20

Finding the Fourth Proportional to 788,855.80, 1,182,992.10 and 256,394.20

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Solution

The fourth proportional to 788,855.80, 1,182,992.10 and 256,394.20 is: 384,496.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,855.80 : 1,182,992.10 = 256,394.20 : x
  2. Step 2: Convert to fraction form
    788,855.80/1,182,992.10 = 256,394.20/x
  3. Step 3: Cross multiply
    788,855.80x = 1,182,992.10 × 256,394.20
  4. Step 4: Simplify right side
    788,855.80x = 303,312,313,085.82
  5. Step 5: Solve for x
    x = 303,312,313,085.82/788,855.80
  6. Step 6: Final answer
    x = 384,496.52

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Half scale
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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.