Home / 1,238,680.64-1,709,378.08-702,136.64

Finding the Fourth Proportional to 1,238,680.64, 1,709,378.08 and 702,136.64

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Solution

The fourth proportional to 1,238,680.64, 1,709,378.08 and 702,136.64 is: 968,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,680.64 : 1,709,378.08 = 702,136.64 : x
  2. Step 2: Convert to fraction form
    1,238,680.64/1,709,378.08 = 702,136.64/x
  3. Step 3: Cross multiply
    1,238,680.64x = 1,709,378.08 × 702,136.64
  4. Step 4: Simplify right side
    1,238,680.64x = 1,200,216,981,580.85
  5. Step 5: Solve for x
    x = 1,200,216,981,580.85/1,238,680.64
  6. Step 6: Final answer
    x = 968,947.88

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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.