Home / 1,098,029.56-1,647,328.30-643,005.07

Finding the Fourth Proportional to 1,098,029.56, 1,647,328.30 and 643,005.07

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Solution

The fourth proportional to 1,098,029.56, 1,647,328.30 and 643,005.07 is: 964,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,029.56 : 1,647,328.30 = 643,005.07 : x
  2. Step 2: Convert to fraction form
    1,098,029.56/1,647,328.30 = 643,005.07/x
  3. Step 3: Cross multiply
    1,098,029.56x = 1,647,328.30 × 643,005.07
  4. Step 4: Simplify right side
    1,098,029.56x = 1,059,240,456,011.77
  5. Step 5: Solve for x
    x = 1,059,240,456,011.77/1,098,029.56
  6. Step 6: Final answer
    x = 964,673.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.