Home / 1,326,122.81-1,989,198.11-1,061,565.06

Finding the Fourth Proportional to 1,326,122.81, 1,989,198.11 and 1,061,565.06

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Solution

The fourth proportional to 1,326,122.81, 1,989,198.11 and 1,061,565.06 is: 1,592,358.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,122.81 : 1,989,198.11 = 1,061,565.06 : x
  2. Step 2: Convert to fraction form
    1,326,122.81/1,989,198.11 = 1,061,565.06/x
  3. Step 3: Cross multiply
    1,326,122.81x = 1,989,198.11 × 1,061,565.06
  4. Step 4: Simplify right side
    1,326,122.81x = 2,111,663,210,994.04
  5. Step 5: Solve for x
    x = 2,111,663,210,994.04/1,326,122.81
  6. Step 6: Final answer
    x = 1,592,358.71

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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.