Home / 709,120.57-1,063,537.80-259,688.02

Finding the Fourth Proportional to 709,120.57, 1,063,537.80 and 259,688.02

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Solution

The fourth proportional to 709,120.57, 1,063,537.80 and 259,688.02 is: 389,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,120.57 : 1,063,537.80 = 259,688.02 : x
  2. Step 2: Convert to fraction form
    709,120.57/1,063,537.80 = 259,688.02/x
  3. Step 3: Cross multiply
    709,120.57x = 1,063,537.80 × 259,688.02
  4. Step 4: Simplify right side
    709,120.57x = 276,188,025,477.16
  5. Step 5: Solve for x
    x = 276,188,025,477.16/709,120.57
  6. Step 6: Final answer
    x = 389,479.64

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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.