Home / 1,217,678.46-1,680,867.27-1,090,132.38

Finding the Fourth Proportional to 1,217,678.46, 1,680,867.27 and 1,090,132.38

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Solution

The fourth proportional to 1,217,678.46, 1,680,867.27 and 1,090,132.38 is: 1,504,804.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,678.46 : 1,680,867.27 = 1,090,132.38 : x
  2. Step 2: Convert to fraction form
    1,217,678.46/1,680,867.27 = 1,090,132.38/x
  3. Step 3: Cross multiply
    1,217,678.46x = 1,680,867.27 × 1,090,132.38
  4. Step 4: Simplify right side
    1,217,678.46x = 1,832,367,837,509.20
  5. Step 5: Solve for x
    x = 1,832,367,837,509.20/1,217,678.46
  6. Step 6: Final answer
    x = 1,504,804.35

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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.