Home / 1,707,616.78-2,561,425.16-642,897.70

Finding the Fourth Proportional to 1,707,616.78, 2,561,425.16 and 642,897.70

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Solution

The fourth proportional to 1,707,616.78, 2,561,425.16 and 642,897.70 is: 964,346.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707,616.78 : 2,561,425.16 = 642,897.70 : x
  2. Step 2: Convert to fraction form
    1,707,616.78/2,561,425.16 = 642,897.70/x
  3. Step 3: Cross multiply
    1,707,616.78x = 2,561,425.16 × 642,897.70
  4. Step 4: Simplify right side
    1,707,616.78x = 1,646,734,334,468.08
  5. Step 5: Solve for x
    x = 1,646,734,334,468.08/1,707,616.78
  6. Step 6: Final answer
    x = 964,346.54

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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.