Home / 1,281,879.70-1,768,921.93-700,987.52

Finding the Fourth Proportional to 1,281,879.70, 1,768,921.93 and 700,987.52

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Solution

The fourth proportional to 1,281,879.70, 1,768,921.93 and 700,987.52 is: 967,323.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,879.70 : 1,768,921.93 = 700,987.52 : x
  2. Step 2: Convert to fraction form
    1,281,879.70/1,768,921.93 = 700,987.52/x
  3. Step 3: Cross multiply
    1,281,879.70x = 1,768,921.93 × 700,987.52
  4. Step 4: Simplify right side
    1,281,879.70x = 1,239,992,196,784.31
  5. Step 5: Solve for x
    x = 1,239,992,196,784.31/1,281,879.70
  6. Step 6: Final answer
    x = 967,323.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.