Home / 813,008.89-1,121,922.48-468,859.33

Finding the Fourth Proportional to 813,008.89, 1,121,922.48 and 468,859.33

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Solution

The fourth proportional to 813,008.89, 1,121,922.48 and 468,859.33 is: 647,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,008.89 : 1,121,922.48 = 468,859.33 : x
  2. Step 2: Convert to fraction form
    813,008.89/1,121,922.48 = 468,859.33/x
  3. Step 3: Cross multiply
    813,008.89x = 1,121,922.48 × 468,859.33
  4. Step 4: Simplify right side
    813,008.89x = 526,023,822,284.74
  5. Step 5: Solve for x
    x = 526,023,822,284.74/813,008.89
  6. Step 6: Final answer
    x = 647,008.70

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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.