Home / 996,493.60-1,490,803.80-864,836.20

Finding the Fourth Proportional to 996,493.60, 1,490,803.80 and 864,836.20

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Solution

The fourth proportional to 996,493.60, 1,490,803.80 and 864,836.20 is: 1,293,837.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,493.60 : 1,490,803.80 = 864,836.20 : x
  2. Step 2: Convert to fraction form
    996,493.60/1,490,803.80 = 864,836.20/x
  3. Step 3: Cross multiply
    996,493.60x = 1,490,803.80 × 864,836.20
  4. Step 4: Simplify right side
    996,493.60x = 1,289,301,093,337.56
  5. Step 5: Solve for x
    x = 1,289,301,093,337.56/996,493.60
  6. Step 6: Final answer
    x = 1,293,837.81

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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.