Home / 1,811,296.80-2,719,319.40-1,214,926.20

Finding the Fourth Proportional to 1,811,296.80, 2,719,319.40 and 1,214,926.20

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Solution

The fourth proportional to 1,811,296.80, 2,719,319.40 and 1,214,926.20 is: 1,823,981.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,296.80 : 2,719,319.40 = 1,214,926.20 : x
  2. Step 2: Convert to fraction form
    1,811,296.80/2,719,319.40 = 1,214,926.20/x
  3. Step 3: Cross multiply
    1,811,296.80x = 2,719,319.40 × 1,214,926.20
  4. Step 4: Simplify right side
    1,811,296.80x = 3,303,772,385,228.28
  5. Step 5: Solve for x
    x = 3,303,772,385,228.28/1,811,296.80
  6. Step 6: Final answer
    x = 1,823,981.79

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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.