Home / 820,249.62-1,232,123.08-772,310.10

Finding the Fourth Proportional to 820,249.62, 1,232,123.08 and 772,310.10

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Solution

The fourth proportional to 820,249.62, 1,232,123.08 and 772,310.10 is: 1,160,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,249.62 : 1,232,123.08 = 772,310.10 : x
  2. Step 2: Convert to fraction form
    820,249.62/1,232,123.08 = 772,310.10/x
  3. Step 3: Cross multiply
    820,249.62x = 1,232,123.08 × 772,310.10
  4. Step 4: Simplify right side
    820,249.62x = 951,581,099,127.11
  5. Step 5: Solve for x
    x = 951,581,099,127.11/820,249.62
  6. Step 6: Final answer
    x = 1,160,111.60

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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.