Home / 929,896.56-1,283,203.80-521,960.40

Finding the Fourth Proportional to 929,896.56, 1,283,203.80 and 521,960.40

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Solution

The fourth proportional to 929,896.56, 1,283,203.80 and 521,960.40 is: 720,275.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,896.56 : 1,283,203.80 = 521,960.40 : x
  2. Step 2: Convert to fraction form
    929,896.56/1,283,203.80 = 521,960.40/x
  3. Step 3: Cross multiply
    929,896.56x = 1,283,203.80 × 521,960.40
  4. Step 4: Simplify right side
    929,896.56x = 669,781,568,729.52
  5. Step 5: Solve for x
    x = 669,781,568,729.52/929,896.56
  6. Step 6: Final answer
    x = 720,275.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.