Home / 2,781,419.80-4,167,291.30-1,282,437.40

Finding the Fourth Proportional to 2,781,419.80, 4,167,291.30 and 1,282,437.40

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Solution

The fourth proportional to 2,781,419.80, 4,167,291.30 and 1,282,437.40 is: 1,921,425.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,419.80 : 4,167,291.30 = 1,282,437.40 : x
  2. Step 2: Convert to fraction form
    2,781,419.80/4,167,291.30 = 1,282,437.40/x
  3. Step 3: Cross multiply
    2,781,419.80x = 4,167,291.30 × 1,282,437.40
  4. Step 4: Simplify right side
    2,781,419.80x = 5,344,290,219,814.62
  5. Step 5: Solve for x
    x = 5,344,290,219,814.62/2,781,419.80
  6. Step 6: Final answer
    x = 1,921,425.24

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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.