Home / 1,356,320.72-1,871,685.60-744,472.64

Finding the Fourth Proportional to 1,356,320.72, 1,871,685.60 and 744,472.64

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Solution

The fourth proportional to 1,356,320.72, 1,871,685.60 and 744,472.64 is: 1,027,351.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356,320.72 : 1,871,685.60 = 744,472.64 : x
  2. Step 2: Convert to fraction form
    1,356,320.72/1,871,685.60 = 744,472.64/x
  3. Step 3: Cross multiply
    1,356,320.72x = 1,871,685.60 × 744,472.64
  4. Step 4: Simplify right side
    1,356,320.72x = 1,393,418,719,881.98
  5. Step 5: Solve for x
    x = 1,393,418,719,881.98/1,356,320.72
  6. Step 6: Final answer
    x = 1,027,351.94

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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.