Home / 1,196,725.78-1,651,318.21-687,428.16

Finding the Fourth Proportional to 1,196,725.78, 1,651,318.21 and 687,428.16

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Solution

The fourth proportional to 1,196,725.78, 1,651,318.21 and 687,428.16 is: 948,557.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,725.78 : 1,651,318.21 = 687,428.16 : x
  2. Step 2: Convert to fraction form
    1,196,725.78/1,651,318.21 = 687,428.16/x
  3. Step 3: Cross multiply
    1,196,725.78x = 1,651,318.21 × 687,428.16
  4. Step 4: Simplify right side
    1,196,725.78x = 1,135,162,638,674.79
  5. Step 5: Solve for x
    x = 1,135,162,638,674.79/1,196,725.78
  6. Step 6: Final answer
    x = 948,557.02

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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.