Home / 842,708.06-1,264,188.14-310,188.54

Finding the Fourth Proportional to 842,708.06, 1,264,188.14 and 310,188.54

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Solution

The fourth proportional to 842,708.06, 1,264,188.14 and 310,188.54 is: 465,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,708.06 : 1,264,188.14 = 310,188.54 : x
  2. Step 2: Convert to fraction form
    842,708.06/1,264,188.14 = 310,188.54/x
  3. Step 3: Cross multiply
    842,708.06x = 1,264,188.14 × 310,188.54
  4. Step 4: Simplify right side
    842,708.06x = 392,136,673,431.92
  5. Step 5: Solve for x
    x = 392,136,673,431.92/842,708.06
  6. Step 6: Final answer
    x = 465,329.21

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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.