Home / 1,286,476.75-1,929,715.13-881,269.39

Finding the Fourth Proportional to 1,286,476.75, 1,929,715.13 and 881,269.39

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Solution

The fourth proportional to 1,286,476.75, 1,929,715.13 and 881,269.39 is: 1,321,904.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,476.75 : 1,929,715.13 = 881,269.39 : x
  2. Step 2: Convert to fraction form
    1,286,476.75/1,929,715.13 = 881,269.39/x
  3. Step 3: Cross multiply
    1,286,476.75x = 1,929,715.13 × 881,269.39
  4. Step 4: Simplify right side
    1,286,476.75x = 1,700,598,875,488.87
  5. Step 5: Solve for x
    x = 1,700,598,875,488.87/1,286,476.75
  6. Step 6: Final answer
    x = 1,321,904.09

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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.