Home / 830,530.05-1,245,795.08-814,783.65

Finding the Fourth Proportional to 830,530.05, 1,245,795.08 and 814,783.65

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Solution

The fourth proportional to 830,530.05, 1,245,795.08 and 814,783.65 is: 1,222,175.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,530.05 : 1,245,795.08 = 814,783.65 : x
  2. Step 2: Convert to fraction form
    830,530.05/1,245,795.08 = 814,783.65/x
  3. Step 3: Cross multiply
    830,530.05x = 1,245,795.08 × 814,783.65
  4. Step 4: Simplify right side
    830,530.05x = 1,015,053,458,360.52
  5. Step 5: Solve for x
    x = 1,015,053,458,360.52/830,530.05
  6. Step 6: Final answer
    x = 1,222,175.48

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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.