Home / 1,510,691.51-2,266,112.55-431,364.15

Finding the Fourth Proportional to 1,510,691.51, 2,266,112.55 and 431,364.15

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Solution

The fourth proportional to 1,510,691.51, 2,266,112.55 and 431,364.15 is: 647,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,691.51 : 2,266,112.55 = 431,364.15 : x
  2. Step 2: Convert to fraction form
    1,510,691.51/2,266,112.55 = 431,364.15/x
  3. Step 3: Cross multiply
    1,510,691.51x = 2,266,112.55 × 431,364.15
  4. Step 4: Simplify right side
    1,510,691.51x = 977,519,713,935.08
  5. Step 5: Solve for x
    x = 977,519,713,935.08/1,510,691.51
  6. Step 6: Final answer
    x = 647,067.72

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Double scale
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1.5x scale

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.