Home / 762,521.13-1,143,785.61-257,086.48

Finding the Fourth Proportional to 762,521.13, 1,143,785.61 and 257,086.48

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Solution

The fourth proportional to 762,521.13, 1,143,785.61 and 257,086.48 is: 385,631.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,521.13 : 1,143,785.61 = 257,086.48 : x
  2. Step 2: Convert to fraction form
    762,521.13/1,143,785.61 = 257,086.48/x
  3. Step 3: Cross multiply
    762,521.13x = 1,143,785.61 × 257,086.48
  4. Step 4: Simplify right side
    762,521.13x = 294,051,816,815.21
  5. Step 5: Solve for x
    x = 294,051,816,815.21/762,521.13
  6. Step 6: Final answer
    x = 385,631.04

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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.