Home / 1,218,251.40-1,680,623.82-788,670.60

Finding the Fourth Proportional to 1,218,251.40, 1,680,623.82 and 788,670.60

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Solution

The fourth proportional to 1,218,251.40, 1,680,623.82 and 788,670.60 is: 1,088,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,251.40 : 1,680,623.82 = 788,670.60 : x
  2. Step 2: Convert to fraction form
    1,218,251.40/1,680,623.82 = 788,670.60/x
  3. Step 3: Cross multiply
    1,218,251.40x = 1,680,623.82 × 788,670.60
  4. Step 4: Simplify right side
    1,218,251.40x = 1,325,458,596,493.69
  5. Step 5: Solve for x
    x = 1,325,458,596,493.69/1,218,251.40
  6. Step 6: Final answer
    x = 1,088,000.88

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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.