Home / 1,252,841.12-1,728,921.86-679,881.29

Finding the Fourth Proportional to 1,252,841.12, 1,728,921.86 and 679,881.29

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Solution

The fourth proportional to 1,252,841.12, 1,728,921.86 and 679,881.29 is: 938,236.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,841.12 : 1,728,921.86 = 679,881.29 : x
  2. Step 2: Convert to fraction form
    1,252,841.12/1,728,921.86 = 679,881.29/x
  3. Step 3: Cross multiply
    1,252,841.12x = 1,728,921.86 × 679,881.29
  4. Step 4: Simplify right side
    1,252,841.12x = 1,175,461,617,541.09
  5. Step 5: Solve for x
    x = 1,175,461,617,541.09/1,252,841.12
  6. Step 6: Final answer
    x = 938,236.78

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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.