Home / 929,228.44-1,280,977.92-656,815.72

Finding the Fourth Proportional to 929,228.44, 1,280,977.92 and 656,815.72

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Solution

The fourth proportional to 929,228.44, 1,280,977.92 and 656,815.72 is: 905,446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,228.44 : 1,280,977.92 = 656,815.72 : x
  2. Step 2: Convert to fraction form
    929,228.44/1,280,977.92 = 656,815.72/x
  3. Step 3: Cross multiply
    929,228.44x = 1,280,977.92 × 656,815.72
  4. Step 4: Simplify right side
    929,228.44x = 841,366,434,828.90
  5. Step 5: Solve for x
    x = 841,366,434,828.90/929,228.44
  6. Step 6: Final answer
    x = 905,446.28

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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.