Home / 1,248,608.40-1,873,787.40-800,419.20

Finding the Fourth Proportional to 1,248,608.40, 1,873,787.40 and 800,419.20

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Solution

The fourth proportional to 1,248,608.40, 1,873,787.40 and 800,419.20 is: 1,201,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,608.40 : 1,873,787.40 = 800,419.20 : x
  2. Step 2: Convert to fraction form
    1,248,608.40/1,873,787.40 = 800,419.20/x
  3. Step 3: Cross multiply
    1,248,608.40x = 1,873,787.40 × 800,419.20
  4. Step 4: Simplify right side
    1,248,608.40x = 1,499,815,411,678.08
  5. Step 5: Solve for x
    x = 1,499,815,411,678.08/1,248,608.40
  6. Step 6: Final answer
    x = 1,201,189.59

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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.