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Finding the Fourth Proportional to 370,687.73, 556,031.59 and 320,619.09

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Solution

The fourth proportional to 370,687.73, 556,031.59 and 320,619.09 is: 480,928.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,687.73 : 556,031.59 = 320,619.09 : x
  2. Step 2: Convert to fraction form
    370,687.73/556,031.59 = 320,619.09/x
  3. Step 3: Cross multiply
    370,687.73x = 556,031.59 × 320,619.09
  4. Step 4: Simplify right side
    370,687.73x = 178,274,343,680.62
  5. Step 5: Solve for x
    x = 178,274,343,680.62/370,687.73
  6. Step 6: Final answer
    x = 480,928.64

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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.