Home / 1,124,013.15-1,686,019.73-1,005,915.15

Finding the Fourth Proportional to 1,124,013.15, 1,686,019.73 and 1,005,915.15

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Solution

The fourth proportional to 1,124,013.15, 1,686,019.73 and 1,005,915.15 is: 1,508,872.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,013.15 : 1,686,019.73 = 1,005,915.15 : x
  2. Step 2: Convert to fraction form
    1,124,013.15/1,686,019.73 = 1,005,915.15/x
  3. Step 3: Cross multiply
    1,124,013.15x = 1,686,019.73 × 1,005,915.15
  4. Step 4: Simplify right side
    1,124,013.15x = 1,695,992,784,576.33
  5. Step 5: Solve for x
    x = 1,695,992,784,576.33/1,124,013.15
  6. Step 6: Final answer
    x = 1,508,872.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.