Home / 1,347,512.80-2,021,560.80-400,979.20

Finding the Fourth Proportional to 1,347,512.80, 2,021,560.80 and 400,979.20

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Solution

The fourth proportional to 1,347,512.80, 2,021,560.80 and 400,979.20 is: 601,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,512.80 : 2,021,560.80 = 400,979.20 : x
  2. Step 2: Convert to fraction form
    1,347,512.80/2,021,560.80 = 400,979.20/x
  3. Step 3: Cross multiply
    1,347,512.80x = 2,021,560.80 × 400,979.20
  4. Step 4: Simplify right side
    1,347,512.80x = 810,603,832,335.36
  5. Step 5: Solve for x
    x = 810,603,832,335.36/1,347,512.80
  6. Step 6: Final answer
    x = 601,555.57

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1.5x scale

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.