Home / 698,652.31-1,048,237.96-485,307.81

Finding the Fourth Proportional to 698,652.31, 1,048,237.96 and 485,307.81

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Solution

The fourth proportional to 698,652.31, 1,048,237.96 and 485,307.81 is: 728,141.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,652.31 : 1,048,237.96 = 485,307.81 : x
  2. Step 2: Convert to fraction form
    698,652.31/1,048,237.96 = 485,307.81/x
  3. Step 3: Cross multiply
    698,652.31x = 1,048,237.96 × 485,307.81
  4. Step 4: Simplify right side
    698,652.31x = 508,718,067,624.68
  5. Step 5: Solve for x
    x = 508,718,067,624.68/698,652.31
  6. Step 6: Final answer
    x = 728,141.97

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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.