Home / 1,326,123.12-1,989,198.59-1,061,565.38

Finding the Fourth Proportional to 1,326,123.12, 1,989,198.59 and 1,061,565.38

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Solution

The fourth proportional to 1,326,123.12, 1,989,198.59 and 1,061,565.38 is: 1,592,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,123.12 : 1,989,198.59 = 1,061,565.38 : x
  2. Step 2: Convert to fraction form
    1,326,123.12/1,989,198.59 = 1,061,565.38/x
  3. Step 3: Cross multiply
    1,326,123.12x = 1,989,198.59 × 1,061,565.38
  4. Step 4: Simplify right side
    1,326,123.12x = 2,111,664,341,834.99
  5. Step 5: Solve for x
    x = 2,111,664,341,834.99/1,326,123.12
  6. Step 6: Final answer
    x = 1,592,359.19

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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.