Home / 762,637.60-1,143,986.10-230,158.72

Finding the Fourth Proportional to 762,637.60, 1,143,986.10 and 230,158.72

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Solution

The fourth proportional to 762,637.60, 1,143,986.10 and 230,158.72 is: 345,247.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,637.60 : 1,143,986.10 = 230,158.72 : x
  2. Step 2: Convert to fraction form
    762,637.60/1,143,986.10 = 230,158.72/x
  3. Step 3: Cross multiply
    762,637.60x = 1,143,986.10 × 230,158.72
  4. Step 4: Simplify right side
    762,637.60x = 263,298,376,473.79
  5. Step 5: Solve for x
    x = 263,298,376,473.79/762,637.60
  6. Step 6: Final answer
    x = 345,247.04

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Double scale
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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.