Home / 1,308,136.74-1,805,378.34-727,417.78

Finding the Fourth Proportional to 1,308,136.74, 1,805,378.34 and 727,417.78

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Solution

The fourth proportional to 1,308,136.74, 1,805,378.34 and 727,417.78 is: 1,003,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,136.74 : 1,805,378.34 = 727,417.78 : x
  2. Step 2: Convert to fraction form
    1,308,136.74/1,805,378.34 = 727,417.78/x
  3. Step 3: Cross multiply
    1,308,136.74x = 1,805,378.34 × 727,417.78
  4. Step 4: Simplify right side
    1,308,136.74x = 1,313,264,304,142.89
  5. Step 5: Solve for x
    x = 1,313,264,304,142.89/1,308,136.74
  6. Step 6: Final answer
    x = 1,003,919.75

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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.