Home / 762,679.81-1,143,571.14-289,398.43

Finding the Fourth Proportional to 762,679.81, 1,143,571.14 and 289,398.43

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Solution

The fourth proportional to 762,679.81, 1,143,571.14 and 289,398.43 is: 433,927.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,679.81 : 1,143,571.14 = 289,398.43 : x
  2. Step 2: Convert to fraction form
    762,679.81/1,143,571.14 = 289,398.43/x
  3. Step 3: Cross multiply
    762,679.81x = 1,143,571.14 × 289,398.43
  4. Step 4: Simplify right side
    762,679.81x = 330,947,692,509.31
  5. Step 5: Solve for x
    x = 330,947,692,509.31/762,679.81
  6. Step 6: Final answer
    x = 433,927.43

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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.