Home / 739,976.64-1,021,170.33-400,444.80

Finding the Fourth Proportional to 739,976.64, 1,021,170.33 and 400,444.80

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Solution

The fourth proportional to 739,976.64, 1,021,170.33 and 400,444.80 is: 552,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,976.64 : 1,021,170.33 = 400,444.80 : x
  2. Step 2: Convert to fraction form
    739,976.64/1,021,170.33 = 400,444.80/x
  3. Step 3: Cross multiply
    739,976.64x = 1,021,170.33 × 400,444.80
  4. Step 4: Simplify right side
    739,976.64x = 408,922,348,562.78
  5. Step 5: Solve for x
    x = 408,922,348,562.78/739,976.64
  6. Step 6: Final answer
    x = 552,615.21

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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.