Home / 762,414.56-1,143,788.16-289,104.56

Finding the Fourth Proportional to 762,414.56, 1,143,788.16 and 289,104.56

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Solution

The fourth proportional to 762,414.56, 1,143,788.16 and 289,104.56 is: 433,719.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,414.56 : 1,143,788.16 = 289,104.56 : x
  2. Step 2: Convert to fraction form
    762,414.56/1,143,788.16 = 289,104.56/x
  3. Step 3: Cross multiply
    762,414.56x = 1,143,788.16 × 289,104.56
  4. Step 4: Simplify right side
    762,414.56x = 330,674,372,730.01
  5. Step 5: Solve for x
    x = 330,674,372,730.01/762,414.56
  6. Step 6: Final answer
    x = 433,719.91

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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.