Home / 808,479.23-1,114,992.74-647,275.46

Finding the Fourth Proportional to 808,479.23, 1,114,992.74 and 647,275.46

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Solution

The fourth proportional to 808,479.23, 1,114,992.74 and 647,275.46 is: 892,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,479.23 : 1,114,992.74 = 647,275.46 : x
  2. Step 2: Convert to fraction form
    808,479.23/1,114,992.74 = 647,275.46/x
  3. Step 3: Cross multiply
    808,479.23x = 1,114,992.74 × 647,275.46
  4. Step 4: Simplify right side
    808,479.23x = 721,707,434,723.39
  5. Step 5: Solve for x
    x = 721,707,434,723.39/808,479.23
  6. Step 6: Final answer
    x = 892,672.83

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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.