Home / 998,075.80-1,497,113.70-820,928.80

Finding the Fourth Proportional to 998,075.80, 1,497,113.70 and 820,928.80

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Solution

The fourth proportional to 998,075.80, 1,497,113.70 and 820,928.80 is: 1,231,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,075.80 : 1,497,113.70 = 820,928.80 : x
  2. Step 2: Convert to fraction form
    998,075.80/1,497,113.70 = 820,928.80/x
  3. Step 3: Cross multiply
    998,075.80x = 1,497,113.70 × 820,928.80
  4. Step 4: Simplify right side
    998,075.80x = 1,229,023,753,204.56
  5. Step 5: Solve for x
    x = 1,229,023,753,204.56/998,075.80
  6. Step 6: Final answer
    x = 1,231,393.20

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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.