Home / 677,384.80-1,015,688.40-203,999.20

Finding the Fourth Proportional to 677,384.80, 1,015,688.40 and 203,999.20

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Solution

The fourth proportional to 677,384.80, 1,015,688.40 and 203,999.20 is: 305,881.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,384.80 : 1,015,688.40 = 203,999.20 : x
  2. Step 2: Convert to fraction form
    677,384.80/1,015,688.40 = 203,999.20/x
  3. Step 3: Cross multiply
    677,384.80x = 1,015,688.40 × 203,999.20
  4. Step 4: Simplify right side
    677,384.80x = 207,199,621,049.28
  5. Step 5: Solve for x
    x = 207,199,621,049.28/677,384.80
  6. Step 6: Final answer
    x = 305,881.71

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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.