Home / 1,419,639.40-2,127,515.10-912,644.20

Finding the Fourth Proportional to 1,419,639.40, 2,127,515.10 and 912,644.20

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Solution

The fourth proportional to 1,419,639.40, 2,127,515.10 and 912,644.20 is: 1,367,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,639.40 : 2,127,515.10 = 912,644.20 : x
  2. Step 2: Convert to fraction form
    1,419,639.40/2,127,515.10 = 912,644.20/x
  3. Step 3: Cross multiply
    1,419,639.40x = 2,127,515.10 × 912,644.20
  4. Step 4: Simplify right side
    1,419,639.40x = 1,941,664,316,427.42
  5. Step 5: Solve for x
    x = 1,941,664,316,427.42/1,419,639.40
  6. Step 6: Final answer
    x = 1,367,716.56

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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.