Home / 628,718.85-942,920.73-268,711.74

Finding the Fourth Proportional to 628,718.85, 942,920.73 and 268,711.74

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Solution

The fourth proportional to 628,718.85, 942,920.73 and 268,711.74 is: 403,000.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,718.85 : 942,920.73 = 268,711.74 : x
  2. Step 2: Convert to fraction form
    628,718.85/942,920.73 = 268,711.74/x
  3. Step 3: Cross multiply
    628,718.85x = 942,920.73 × 268,711.74
  4. Step 4: Simplify right side
    628,718.85x = 253,373,870,040.37
  5. Step 5: Solve for x
    x = 253,373,870,040.37/628,718.85
  6. Step 6: Final answer
    x = 403,000.28

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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.