Home / 1,129,367.80-1,558,083.06-645,673.06

Finding the Fourth Proportional to 1,129,367.80, 1,558,083.06 and 645,673.06

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Solution

The fourth proportional to 1,129,367.80, 1,558,083.06 and 645,673.06 is: 890,774.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,367.80 : 1,558,083.06 = 645,673.06 : x
  2. Step 2: Convert to fraction form
    1,129,367.80/1,558,083.06 = 645,673.06/x
  3. Step 3: Cross multiply
    1,129,367.80x = 1,558,083.06 × 645,673.06
  4. Step 4: Simplify right side
    1,129,367.80x = 1,006,012,257,084.36
  5. Step 5: Solve for x
    x = 1,006,012,257,084.36/1,129,367.80
  6. Step 6: Final answer
    x = 890,774.69

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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.