Home / 1,057,172.58-1,458,687.11-643,432.23

Finding the Fourth Proportional to 1,057,172.58, 1,458,687.11 and 643,432.23

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Solution

The fourth proportional to 1,057,172.58, 1,458,687.11 and 643,432.23 is: 887,808.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,172.58 : 1,458,687.11 = 643,432.23 : x
  2. Step 2: Convert to fraction form
    1,057,172.58/1,458,687.11 = 643,432.23/x
  3. Step 3: Cross multiply
    1,057,172.58x = 1,458,687.11 × 643,432.23
  4. Step 4: Simplify right side
    1,057,172.58x = 938,566,296,842.39
  5. Step 5: Solve for x
    x = 938,566,296,842.39/1,057,172.58
  6. Step 6: Final answer
    x = 887,808.02

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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.