Home / 1,391,035.72-1,923,855.45-1,247,743.48

Finding the Fourth Proportional to 1,391,035.72, 1,923,855.45 and 1,247,743.48

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Solution

The fourth proportional to 1,391,035.72, 1,923,855.45 and 1,247,743.48 is: 1,725,676.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,035.72 : 1,923,855.45 = 1,247,743.48 : x
  2. Step 2: Convert to fraction form
    1,391,035.72/1,923,855.45 = 1,247,743.48/x
  3. Step 3: Cross multiply
    1,391,035.72x = 1,923,855.45 × 1,247,743.48
  4. Step 4: Simplify right side
    1,391,035.72x = 2,400,478,094,199.97
  5. Step 5: Solve for x
    x = 2,400,478,094,199.97/1,391,035.72
  6. Step 6: Final answer
    x = 1,725,676.82

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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.