Home / 1,159,689.12-1,600,383.96-643,452.36

Finding the Fourth Proportional to 1,159,689.12, 1,600,383.96 and 643,452.36

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Solution

The fourth proportional to 1,159,689.12, 1,600,383.96 and 643,452.36 is: 887,971.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,689.12 : 1,600,383.96 = 643,452.36 : x
  2. Step 2: Convert to fraction form
    1,159,689.12/1,600,383.96 = 643,452.36/x
  3. Step 3: Cross multiply
    1,159,689.12x = 1,600,383.96 × 643,452.36
  4. Step 4: Simplify right side
    1,159,689.12x = 1,029,770,835,968.15
  5. Step 5: Solve for x
    x = 1,029,770,835,968.15/1,159,689.12
  6. Step 6: Final answer
    x = 887,971.46

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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.