Home / 926,756.80-1,390,135.20-327,713.20

Finding the Fourth Proportional to 926,756.80, 1,390,135.20 and 327,713.20

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Solution

The fourth proportional to 926,756.80, 1,390,135.20 and 327,713.20 is: 491,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,756.80 : 1,390,135.20 = 327,713.20 : x
  2. Step 2: Convert to fraction form
    926,756.80/1,390,135.20 = 327,713.20/x
  3. Step 3: Cross multiply
    926,756.80x = 1,390,135.20 × 327,713.20
  4. Step 4: Simplify right side
    926,756.80x = 455,565,654,824.64
  5. Step 5: Solve for x
    x = 455,565,654,824.64/926,756.80
  6. Step 6: Final answer
    x = 491,569.80

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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.