Home / 708,133.24-1,062,642.42-287,409.12

Finding the Fourth Proportional to 708,133.24, 1,062,642.42 and 287,409.12

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Solution

The fourth proportional to 708,133.24, 1,062,642.42 and 287,409.12 is: 431,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,133.24 : 1,062,642.42 = 287,409.12 : x
  2. Step 2: Convert to fraction form
    708,133.24/1,062,642.42 = 287,409.12/x
  3. Step 3: Cross multiply
    708,133.24x = 1,062,642.42 × 287,409.12
  4. Step 4: Simplify right side
    708,133.24x = 305,413,122,806.87
  5. Step 5: Solve for x
    x = 305,413,122,806.87/708,133.24
  6. Step 6: Final answer
    x = 431,293.30

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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.