Home / 859,551.12-1,289,326.56-268,575.12

Finding the Fourth Proportional to 859,551.12, 1,289,326.56 and 268,575.12

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Solution

The fourth proportional to 859,551.12, 1,289,326.56 and 268,575.12 is: 402,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,551.12 : 1,289,326.56 = 268,575.12 : x
  2. Step 2: Convert to fraction form
    859,551.12/1,289,326.56 = 268,575.12/x
  3. Step 3: Cross multiply
    859,551.12x = 1,289,326.56 × 268,575.12
  4. Step 4: Simplify right side
    859,551.12x = 346,281,035,571.19
  5. Step 5: Solve for x
    x = 346,281,035,571.19/859,551.12
  6. Step 6: Final answer
    x = 402,862.64

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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.