Home / 1,098,106.08-1,647,442.98-643,081.47

Finding the Fourth Proportional to 1,098,106.08, 1,647,442.98 and 643,081.47

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Solution

The fourth proportional to 1,098,106.08, 1,647,442.98 and 643,081.47 is: 964,788.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,106.08 : 1,647,442.98 = 643,081.47 : x
  2. Step 2: Convert to fraction form
    1,098,106.08/1,647,442.98 = 643,081.47/x
  3. Step 3: Cross multiply
    1,098,106.08x = 1,647,442.98 × 643,081.47
  4. Step 4: Simplify right side
    1,098,106.08x = 1,059,440,053,319.58
  5. Step 5: Solve for x
    x = 1,059,440,053,319.58/1,098,106.08
  6. Step 6: Final answer
    x = 964,788.44

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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.