Home / 998,087.30-1,497,130.95-820,940.30

Finding the Fourth Proportional to 998,087.30, 1,497,130.95 and 820,940.30

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Solution

The fourth proportional to 998,087.30, 1,497,130.95 and 820,940.30 is: 1,231,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,087.30 : 1,497,130.95 = 820,940.30 : x
  2. Step 2: Convert to fraction form
    998,087.30/1,497,130.95 = 820,940.30/x
  3. Step 3: Cross multiply
    998,087.30x = 1,497,130.95 × 820,940.30
  4. Step 4: Simplify right side
    998,087.30x = 1,229,055,131,232.28
  5. Step 5: Solve for x
    x = 1,229,055,131,232.28/998,087.30
  6. Step 6: Final answer
    x = 1,231,410.45

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Double scale
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Similar ratio
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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.