Home / 1,421,711.74-2,123,488.36-1,286,566.30

Finding the Fourth Proportional to 1,421,711.74, 2,123,488.36 and 1,286,566.30

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Solution

The fourth proportional to 1,421,711.74, 2,123,488.36 and 1,286,566.30 is: 1,921,633.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,711.74 : 2,123,488.36 = 1,286,566.30 : x
  2. Step 2: Convert to fraction form
    1,421,711.74/2,123,488.36 = 1,286,566.30/x
  3. Step 3: Cross multiply
    1,421,711.74x = 2,123,488.36 × 1,286,566.30
  4. Step 4: Simplify right side
    1,421,711.74x = 2,732,008,562,418.27
  5. Step 5: Solve for x
    x = 2,732,008,562,418.27/1,421,711.74
  6. Step 6: Final answer
    x = 1,921,633.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.