Home / 1,315,691.51-1,969,988.88-859,151.82

Finding the Fourth Proportional to 1,315,691.51, 1,969,988.88 and 859,151.82

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Solution

The fourth proportional to 1,315,691.51, 1,969,988.88 and 859,151.82 is: 1,286,410.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,691.51 : 1,969,988.88 = 859,151.82 : x
  2. Step 2: Convert to fraction form
    1,315,691.51/1,969,988.88 = 859,151.82/x
  3. Step 3: Cross multiply
    1,315,691.51x = 1,969,988.88 × 859,151.82
  4. Step 4: Simplify right side
    1,315,691.51x = 1,692,519,531,631.76
  5. Step 5: Solve for x
    x = 1,692,519,531,631.76/1,315,691.51
  6. Step 6: Final answer
    x = 1,286,410.62

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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.