Home / 788,143.80-1,182,507.30-255,682.20

Finding the Fourth Proportional to 788,143.80, 1,182,507.30 and 255,682.20

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Solution

The fourth proportional to 788,143.80, 1,182,507.30 and 255,682.20 is: 383,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,143.80 : 1,182,507.30 = 255,682.20 : x
  2. Step 2: Convert to fraction form
    788,143.80/1,182,507.30 = 255,682.20/x
  3. Step 3: Cross multiply
    788,143.80x = 1,182,507.30 × 255,682.20
  4. Step 4: Simplify right side
    788,143.80x = 302,346,067,980.06
  5. Step 5: Solve for x
    x = 302,346,067,980.06/788,143.80
  6. Step 6: Final answer
    x = 383,617.90

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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.