Home / 1,346,143.80-2,019,215.70-1,213,283.55

Finding the Fourth Proportional to 1,346,143.80, 2,019,215.70 and 1,213,283.55

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Solution

The fourth proportional to 1,346,143.80, 2,019,215.70 and 1,213,283.55 is: 1,819,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,143.80 : 2,019,215.70 = 1,213,283.55 : x
  2. Step 2: Convert to fraction form
    1,346,143.80/2,019,215.70 = 1,213,283.55/x
  3. Step 3: Cross multiply
    1,346,143.80x = 2,019,215.70 × 1,213,283.55
  4. Step 4: Simplify right side
    1,346,143.80x = 2,449,881,192,711.74
  5. Step 5: Solve for x
    x = 2,449,881,192,711.74/1,346,143.80
  6. Step 6: Final answer
    x = 1,819,925.33

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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.