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Finding the Fourth Proportional to 1,361,463, 1,878,863.74 and 749,660.70

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Solution

The fourth proportional to 1,361,463, 1,878,863.74 and 749,660.70 is: 1,034,556.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,463 : 1,878,863.74 = 749,660.70 : x
  2. Step 2: Convert to fraction form
    1,361,463/1,878,863.74 = 749,660.70/x
  3. Step 3: Cross multiply
    1,361,463x = 1,878,863.74 × 749,660.70
  4. Step 4: Simplify right side
    1,361,463x = 1,408,510,306,533.02
  5. Step 5: Solve for x
    x = 1,408,510,306,533.02/1,361,463
  6. Step 6: Final answer
    x = 1,034,556.43

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1.5x scale

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.