Home / 1,219,698.30-1,828,329.52-815,231.18

Finding the Fourth Proportional to 1,219,698.30, 1,828,329.52 and 815,231.18

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Solution

The fourth proportional to 1,219,698.30, 1,828,329.52 and 815,231.18 is: 1,222,032.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,698.30 : 1,828,329.52 = 815,231.18 : x
  2. Step 2: Convert to fraction form
    1,219,698.30/1,828,329.52 = 815,231.18/x
  3. Step 3: Cross multiply
    1,219,698.30x = 1,828,329.52 × 815,231.18
  4. Step 4: Simplify right side
    1,219,698.30x = 1,490,511,236,079.74
  5. Step 5: Solve for x
    x = 1,490,511,236,079.74/1,219,698.30
  6. Step 6: Final answer
    x = 1,222,032.72

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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.