Home / 1,252,387.79-1,728,295.83-679,427.90

Finding the Fourth Proportional to 1,252,387.79, 1,728,295.83 and 679,427.90

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Solution

The fourth proportional to 1,252,387.79, 1,728,295.83 and 679,427.90 is: 937,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,387.79 : 1,728,295.83 = 679,427.90 : x
  2. Step 2: Convert to fraction form
    1,252,387.79/1,728,295.83 = 679,427.90/x
  3. Step 3: Cross multiply
    1,252,387.79x = 1,728,295.83 × 679,427.90
  4. Step 4: Simplify right side
    1,252,387.79x = 1,174,252,397,714.18
  5. Step 5: Solve for x
    x = 1,174,252,397,714.18/1,252,387.79
  6. Step 6: Final answer
    x = 937,610.87

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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.