Home / 1,260,709.29-1,739,776.47-687,749.42

Finding the Fourth Proportional to 1,260,709.29, 1,739,776.47 and 687,749.42

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Solution

The fourth proportional to 1,260,709.29, 1,739,776.47 and 687,749.42 is: 949,092.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,709.29 : 1,739,776.47 = 687,749.42 : x
  2. Step 2: Convert to fraction form
    1,260,709.29/1,739,776.47 = 687,749.42/x
  3. Step 3: Cross multiply
    1,260,709.29x = 1,739,776.47 × 687,749.42
  4. Step 4: Simplify right side
    1,260,709.29x = 1,196,530,249,473.27
  5. Step 5: Solve for x
    x = 1,196,530,249,473.27/1,260,709.29
  6. Step 6: Final answer
    x = 949,092.91

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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.