Home / 1,374,022.80-2,061,034.20-1,221,807.60

Finding the Fourth Proportional to 1,374,022.80, 2,061,034.20 and 1,221,807.60

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Solution

The fourth proportional to 1,374,022.80, 2,061,034.20 and 1,221,807.60 is: 1,832,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374,022.80 : 2,061,034.20 = 1,221,807.60 : x
  2. Step 2: Convert to fraction form
    1,374,022.80/2,061,034.20 = 1,221,807.60/x
  3. Step 3: Cross multiply
    1,374,022.80x = 2,061,034.20 × 1,221,807.60
  4. Step 4: Simplify right side
    1,374,022.80x = 2,518,187,249,419.92
  5. Step 5: Solve for x
    x = 2,518,187,249,419.92/1,374,022.80
  6. Step 6: Final answer
    x = 1,832,711.40

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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.