Home / 813,009.89-1,121,923.86-468,860.33

Finding the Fourth Proportional to 813,009.89, 1,121,923.86 and 468,860.33

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Solution

The fourth proportional to 813,009.89, 1,121,923.86 and 468,860.33 is: 647,010.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,009.89 : 1,121,923.86 = 468,860.33 : x
  2. Step 2: Convert to fraction form
    813,009.89/1,121,923.86 = 468,860.33/x
  3. Step 3: Cross multiply
    813,009.89x = 1,121,923.86 × 468,860.33
  4. Step 4: Simplify right side
    813,009.89x = 526,025,591,234.47
  5. Step 5: Solve for x
    x = 526,025,591,234.47/813,009.89
  6. Step 6: Final answer
    x = 647,010.08

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Double scale
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1.5x scale

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.