Home / 1,715,801.32-2,367,912.18-990,780.04

Finding the Fourth Proportional to 1,715,801.32, 2,367,912.18 and 990,780.04

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Solution

The fourth proportional to 1,715,801.32, 2,367,912.18 and 990,780.04 is: 1,367,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715,801.32 : 2,367,912.18 = 990,780.04 : x
  2. Step 2: Convert to fraction form
    1,715,801.32/2,367,912.18 = 990,780.04/x
  3. Step 3: Cross multiply
    1,715,801.32x = 2,367,912.18 × 990,780.04
  4. Step 4: Simplify right side
    1,715,801.32x = 2,346,080,124,416.89
  5. Step 5: Solve for x
    x = 2,346,080,124,416.89/1,715,801.32
  6. Step 6: Final answer
    x = 1,367,337.87

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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.