Home / 762,312.11-1,143,573.75-257,017.73

Finding the Fourth Proportional to 762,312.11, 1,143,573.75 and 257,017.73

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Solution

The fourth proportional to 762,312.11, 1,143,573.75 and 257,017.73 is: 385,562.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,312.11 : 1,143,573.75 = 257,017.73 : x
  2. Step 2: Convert to fraction form
    762,312.11/1,143,573.75 = 257,017.73/x
  3. Step 3: Cross multiply
    762,312.11x = 1,143,573.75 × 257,017.73
  4. Step 4: Simplify right side
    762,312.11x = 293,918,723,594.72
  5. Step 5: Solve for x
    x = 293,918,723,594.72/762,312.11
  6. Step 6: Final answer
    x = 385,562.19

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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.