Home / 1,161,890.73-1,603,377.14-645,631.29

Finding the Fourth Proportional to 1,161,890.73, 1,603,377.14 and 645,631.29

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Solution

The fourth proportional to 1,161,890.73, 1,603,377.14 and 645,631.29 is: 890,953.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,890.73 : 1,603,377.14 = 645,631.29 : x
  2. Step 2: Convert to fraction form
    1,161,890.73/1,603,377.14 = 645,631.29/x
  3. Step 3: Cross multiply
    1,161,890.73x = 1,603,377.14 × 645,631.29
  4. Step 4: Simplify right side
    1,161,890.73x = 1,035,190,448,026.55
  5. Step 5: Solve for x
    x = 1,035,190,448,026.55/1,161,890.73
  6. Step 6: Final answer
    x = 890,953.36

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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.