Home / 1,309,358.32-1,806,643.56-765,388.92

Finding the Fourth Proportional to 1,309,358.32, 1,806,643.56 and 765,388.92

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Solution

The fourth proportional to 1,309,358.32, 1,806,643.56 and 765,388.92 is: 1,056,078.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,358.32 : 1,806,643.56 = 765,388.92 : x
  2. Step 2: Convert to fraction form
    1,309,358.32/1,806,643.56 = 765,388.92/x
  3. Step 3: Cross multiply
    1,309,358.32x = 1,806,643.56 × 765,388.92
  4. Step 4: Simplify right side
    1,309,358.32x = 1,382,784,963,213.36
  5. Step 5: Solve for x
    x = 1,382,784,963,213.36/1,309,358.32
  6. Step 6: Final answer
    x = 1,056,078.34

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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.