Home / 788,107.80-1,182,453.30-255,646.20

Finding the Fourth Proportional to 788,107.80, 1,182,453.30 and 255,646.20

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Solution

The fourth proportional to 788,107.80, 1,182,453.30 and 255,646.20 is: 383,563.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,107.80 : 1,182,453.30 = 255,646.20 : x
  2. Step 2: Convert to fraction form
    788,107.80/1,182,453.30 = 255,646.20/x
  3. Step 3: Cross multiply
    788,107.80x = 1,182,453.30 × 255,646.20
  4. Step 4: Simplify right side
    788,107.80x = 302,289,692,822.46
  5. Step 5: Solve for x
    x = 302,289,692,822.46/788,107.80
  6. Step 6: Final answer
    x = 383,563.89

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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.