Home / 1,159,388.26-1,599,954.31-643,220.42

Finding the Fourth Proportional to 1,159,388.26, 1,599,954.31 and 643,220.42

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Solution

The fourth proportional to 1,159,388.26, 1,599,954.31 and 643,220.42 is: 887,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,388.26 : 1,599,954.31 = 643,220.42 : x
  2. Step 2: Convert to fraction form
    1,159,388.26/1,599,954.31 = 643,220.42/x
  3. Step 3: Cross multiply
    1,159,388.26x = 1,599,954.31 × 643,220.42
  4. Step 4: Simplify right side
    1,159,388.26x = 1,029,123,283,259.01
  5. Step 5: Solve for x
    x = 1,029,123,283,259.01/1,159,388.26
  6. Step 6: Final answer
    x = 887,643.35

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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.