Home / 762,679.32-1,143,570.38-289,397.94

Finding the Fourth Proportional to 762,679.32, 1,143,570.38 and 289,397.94

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Solution

The fourth proportional to 762,679.32, 1,143,570.38 and 289,397.94 is: 433,926.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,679.32 : 1,143,570.38 = 289,397.94 : x
  2. Step 2: Convert to fraction form
    762,679.32/1,143,570.38 = 289,397.94/x
  3. Step 3: Cross multiply
    762,679.32x = 1,143,570.38 × 289,397.94
  4. Step 4: Simplify right side
    762,679.32x = 330,946,912,217.02
  5. Step 5: Solve for x
    x = 330,946,912,217.02/762,679.32
  6. Step 6: Final answer
    x = 433,926.69

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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.