Home / 1,280,769.47-1,767,502.52-699,979.86

Finding the Fourth Proportional to 1,280,769.47, 1,767,502.52 and 699,979.86

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Solution

The fourth proportional to 1,280,769.47, 1,767,502.52 and 699,979.86 is: 965,994.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,769.47 : 1,767,502.52 = 699,979.86 : x
  2. Step 2: Convert to fraction form
    1,280,769.47/1,767,502.52 = 699,979.86/x
  3. Step 3: Cross multiply
    1,280,769.47x = 1,767,502.52 × 699,979.86
  4. Step 4: Simplify right side
    1,280,769.47x = 1,237,216,166,499.25
  5. Step 5: Solve for x
    x = 1,237,216,166,499.25/1,280,769.47
  6. Step 6: Final answer
    x = 965,994.42

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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.