Home / 1,715,874.87-2,368,117.32-990,721.38

Finding the Fourth Proportional to 1,715,874.87, 2,368,117.32 and 990,721.38

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Solution

The fourth proportional to 1,715,874.87, 2,368,117.32 and 990,721.38 is: 1,367,316.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715,874.87 : 2,368,117.32 = 990,721.38 : x
  2. Step 2: Convert to fraction form
    1,715,874.87/2,368,117.32 = 990,721.38/x
  3. Step 3: Cross multiply
    1,715,874.87x = 2,368,117.32 × 990,721.38
  4. Step 4: Simplify right side
    1,715,874.87x = 2,346,144,459,272.30
  5. Step 5: Solve for x
    x = 2,346,144,459,272.30/1,715,874.87
  6. Step 6: Final answer
    x = 1,367,316.76

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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.