Home / 1,213,801.20-1,822,199.40-764,521.20

Finding the Fourth Proportional to 1,213,801.20, 1,822,199.40 and 764,521.20

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Solution

The fourth proportional to 1,213,801.20, 1,822,199.40 and 764,521.20 is: 1,147,725.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,801.20 : 1,822,199.40 = 764,521.20 : x
  2. Step 2: Convert to fraction form
    1,213,801.20/1,822,199.40 = 764,521.20/x
  3. Step 3: Cross multiply
    1,213,801.20x = 1,822,199.40 × 764,521.20
  4. Step 4: Simplify right side
    1,213,801.20x = 1,393,110,071,927.28
  5. Step 5: Solve for x
    x = 1,393,110,071,927.28/1,213,801.20
  6. Step 6: Final answer
    x = 1,147,725.07

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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.