Home / 1,057,179.33-1,458,696.42-643,438.98

Finding the Fourth Proportional to 1,057,179.33, 1,458,696.42 and 643,438.98

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Solution

The fourth proportional to 1,057,179.33, 1,458,696.42 and 643,438.98 is: 887,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,179.33 : 1,458,696.42 = 643,438.98 : x
  2. Step 2: Convert to fraction form
    1,057,179.33/1,458,696.42 = 643,438.98/x
  3. Step 3: Cross multiply
    1,057,179.33x = 1,458,696.42 × 643,438.98
  4. Step 4: Simplify right side
    1,057,179.33x = 938,582,136,614.45
  5. Step 5: Solve for x
    x = 938,582,136,614.45/1,057,179.33
  6. Step 6: Final answer
    x = 887,817.34

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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.