Home / 1,326,121.80-1,988,818.56-366,348.12

Finding the Fourth Proportional to 1,326,121.80, 1,988,818.56 and 366,348.12

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Solution

The fourth proportional to 1,326,121.80, 1,988,818.56 and 366,348.12 is: 549,421.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,121.80 : 1,988,818.56 = 366,348.12 : x
  2. Step 2: Convert to fraction form
    1,326,121.80/1,988,818.56 = 366,348.12/x
  3. Step 3: Cross multiply
    1,326,121.80x = 1,988,818.56 × 366,348.12
  4. Step 4: Simplify right side
    1,326,121.80x = 728,599,940,477.11
  5. Step 5: Solve for x
    x = 728,599,940,477.11/1,326,121.80
  6. Step 6: Final answer
    x = 549,421.58

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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.