Home / 1,309,256.68-1,806,615.52-728,342.56

Finding the Fourth Proportional to 1,309,256.68, 1,806,615.52 and 728,342.56

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Solution

The fourth proportional to 1,309,256.68, 1,806,615.52 and 728,342.56 is: 1,005,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,256.68 : 1,806,615.52 = 728,342.56 : x
  2. Step 2: Convert to fraction form
    1,309,256.68/1,806,615.52 = 728,342.56/x
  3. Step 3: Cross multiply
    1,309,256.68x = 1,806,615.52 × 728,342.56
  4. Step 4: Simplify right side
    1,309,256.68x = 1,315,834,972,772.53
  5. Step 5: Solve for x
    x = 1,315,834,972,772.53/1,309,256.68
  6. Step 6: Final answer
    x = 1,005,024.45

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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.