Home / 762,772.26-1,143,715.34-289,199.28

Finding the Fourth Proportional to 762,772.26, 1,143,715.34 and 289,199.28

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Solution

The fourth proportional to 762,772.26, 1,143,715.34 and 289,199.28 is: 433,630.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,772.26 : 1,143,715.34 = 289,199.28 : x
  2. Step 2: Convert to fraction form
    762,772.26/1,143,715.34 = 289,199.28/x
  3. Step 3: Cross multiply
    762,772.26x = 1,143,715.34 × 289,199.28
  4. Step 4: Simplify right side
    762,772.26x = 330,761,652,852.96
  5. Step 5: Solve for x
    x = 330,761,652,852.96/762,772.26
  6. Step 6: Final answer
    x = 433,630.94

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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.