Home / 762,799.51-1,143,742.55-257,349.30

Finding the Fourth Proportional to 762,799.51, 1,143,742.55 and 257,349.30

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Solution

The fourth proportional to 762,799.51, 1,143,742.55 and 257,349.30 is: 385,869.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,799.51 : 1,143,742.55 = 257,349.30 : x
  2. Step 2: Convert to fraction form
    762,799.51/1,143,742.55 = 257,349.30/x
  3. Step 3: Cross multiply
    762,799.51x = 1,143,742.55 × 257,349.30
  4. Step 4: Simplify right side
    762,799.51x = 294,341,339,046.93
  5. Step 5: Solve for x
    x = 294,341,339,046.93/762,799.51
  6. Step 6: Final answer
    x = 385,869.86

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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.