Home / 1,252,389.29-1,728,297.90-679,429.40

Finding the Fourth Proportional to 1,252,389.29, 1,728,297.90 and 679,429.40

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Solution

The fourth proportional to 1,252,389.29, 1,728,297.90 and 679,429.40 is: 937,612.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,389.29 : 1,728,297.90 = 679,429.40 : x
  2. Step 2: Convert to fraction form
    1,252,389.29/1,728,297.90 = 679,429.40/x
  3. Step 3: Cross multiply
    1,252,389.29x = 1,728,297.90 × 679,429.40
  4. Step 4: Simplify right side
    1,252,389.29x = 1,174,256,396,576.77
  5. Step 5: Solve for x
    x = 1,174,256,396,576.77/1,252,389.29
  6. Step 6: Final answer
    x = 937,612.94

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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.