Home / 807,547.94-1,211,881.14-321,180.20

Finding the Fourth Proportional to 807,547.94, 1,211,881.14 and 321,180.20

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Solution

The fourth proportional to 807,547.94, 1,211,881.14 and 321,180.20 is: 481,992.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,547.94 : 1,211,881.14 = 321,180.20 : x
  2. Step 2: Convert to fraction form
    807,547.94/1,211,881.14 = 321,180.20/x
  3. Step 3: Cross multiply
    807,547.94x = 1,211,881.14 × 321,180.20
  4. Step 4: Simplify right side
    807,547.94x = 389,232,226,921.43
  5. Step 5: Solve for x
    x = 389,232,226,921.43/807,547.94
  6. Step 6: Final answer
    x = 481,992.72

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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.