Home / 1,987,966.68-2,743,322.02-1,214,890.87

Finding the Fourth Proportional to 1,987,966.68, 2,743,322.02 and 1,214,890.87

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Solution

The fourth proportional to 1,987,966.68, 2,743,322.02 and 1,214,890.87 is: 1,676,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,966.68 : 2,743,322.02 = 1,214,890.87 : x
  2. Step 2: Convert to fraction form
    1,987,966.68/2,743,322.02 = 1,214,890.87/x
  3. Step 3: Cross multiply
    1,987,966.68x = 2,743,322.02 × 1,214,890.87
  4. Step 4: Simplify right side
    1,987,966.68x = 3,332,836,869,493.50
  5. Step 5: Solve for x
    x = 3,332,836,869,493.50/1,987,966.68
  6. Step 6: Final answer
    x = 1,676,505.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.