Home / 739,855.20-1,021,003.60-417,578.88

Finding the Fourth Proportional to 739,855.20, 1,021,003.60 and 417,578.88

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Solution

The fourth proportional to 739,855.20, 1,021,003.60 and 417,578.88 is: 576,260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,855.20 : 1,021,003.60 = 417,578.88 : x
  2. Step 2: Convert to fraction form
    739,855.20/1,021,003.60 = 417,578.88/x
  3. Step 3: Cross multiply
    739,855.20x = 1,021,003.60 × 417,578.88
  4. Step 4: Simplify right side
    739,855.20x = 426,349,539,763.97
  5. Step 5: Solve for x
    x = 426,349,539,763.97/739,855.20
  6. Step 6: Final answer
    x = 576,260.79

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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.