Home / 1,820,376.60-2,729,908.80-921,519.60

Finding the Fourth Proportional to 1,820,376.60, 2,729,908.80 and 921,519.60

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Solution

The fourth proportional to 1,820,376.60, 2,729,908.80 and 921,519.60 is: 1,381,947.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,376.60 : 2,729,908.80 = 921,519.60 : x
  2. Step 2: Convert to fraction form
    1,820,376.60/2,729,908.80 = 921,519.60/x
  3. Step 3: Cross multiply
    1,820,376.60x = 2,729,908.80 × 921,519.60
  4. Step 4: Simplify right side
    1,820,376.60x = 2,515,664,465,412.48
  5. Step 5: Solve for x
    x = 2,515,664,465,412.48/1,820,376.60
  6. Step 6: Final answer
    x = 1,381,947.27

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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.