Home / 906,939.20-1,361,456.40-487,035.20

Finding the Fourth Proportional to 906,939.20, 1,361,456.40 and 487,035.20

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Solution

The fourth proportional to 906,939.20, 1,361,456.40 and 487,035.20 is: 731,115.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,939.20 : 1,361,456.40 = 487,035.20 : x
  2. Step 2: Convert to fraction form
    906,939.20/1,361,456.40 = 487,035.20/x
  3. Step 3: Cross multiply
    906,939.20x = 1,361,456.40 × 487,035.20
  4. Step 4: Simplify right side
    906,939.20x = 663,077,190,065.28
  5. Step 5: Solve for x
    x = 663,077,190,065.28/906,939.20
  6. Step 6: Final answer
    x = 731,115.37

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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.