Home / 1,049,872.80-1,574,809.20-518,431.80

Finding the Fourth Proportional to 1,049,872.80, 1,574,809.20 and 518,431.80

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Solution

The fourth proportional to 1,049,872.80, 1,574,809.20 and 518,431.80 is: 777,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,872.80 : 1,574,809.20 = 518,431.80 : x
  2. Step 2: Convert to fraction form
    1,049,872.80/1,574,809.20 = 518,431.80/x
  3. Step 3: Cross multiply
    1,049,872.80x = 1,574,809.20 × 518,431.80
  4. Step 4: Simplify right side
    1,049,872.80x = 816,431,168,212.56
  5. Step 5: Solve for x
    x = 816,431,168,212.56/1,049,872.80
  6. Step 6: Final answer
    x = 777,647.70

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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.