Home / 1,715,900.38-2,368,054.65-990,778.66

Finding the Fourth Proportional to 1,715,900.38, 2,368,054.65 and 990,778.66

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Solution

The fourth proportional to 1,715,900.38, 2,368,054.65 and 990,778.66 is: 1,367,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715,900.38 : 2,368,054.65 = 990,778.66 : x
  2. Step 2: Convert to fraction form
    1,715,900.38/2,368,054.65 = 990,778.66/x
  3. Step 3: Cross multiply
    1,715,900.38x = 2,368,054.65 × 990,778.66
  4. Step 4: Simplify right side
    1,715,900.38x = 2,346,218,012,933.77
  5. Step 5: Solve for x
    x = 2,346,218,012,933.77/1,715,900.38
  6. Step 6: Final answer
    x = 1,367,339.29

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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.