Home / 1,073,172.34-1,480,654.87-643,295.62

Finding the Fourth Proportional to 1,073,172.34, 1,480,654.87 and 643,295.62

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Solution

The fourth proportional to 1,073,172.34, 1,480,654.87 and 643,295.62 is: 887,554.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,073,172.34 : 1,480,654.87 = 643,295.62 : x
  2. Step 2: Convert to fraction form
    1,073,172.34/1,480,654.87 = 643,295.62/x
  3. Step 3: Cross multiply
    1,073,172.34x = 1,480,654.87 × 643,295.62
  4. Step 4: Simplify right side
    1,073,172.34x = 952,498,789,386.19
  5. Step 5: Solve for x
    x = 952,498,789,386.19/1,073,172.34
  6. Step 6: Final answer
    x = 887,554.36

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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.