Home / 498,734.76-688,258.37-283,888.66

Finding the Fourth Proportional to 498,734.76, 688,258.37 and 283,888.66

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Solution

The fourth proportional to 498,734.76, 688,258.37 and 283,888.66 is: 391,768.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,734.76 : 688,258.37 = 283,888.66 : x
  2. Step 2: Convert to fraction form
    498,734.76/688,258.37 = 283,888.66/x
  3. Step 3: Cross multiply
    498,734.76x = 688,258.37 × 283,888.66
  4. Step 4: Simplify right side
    498,734.76x = 195,388,747,102.81
  5. Step 5: Solve for x
    x = 195,388,747,102.81/498,734.76
  6. Step 6: Final answer
    x = 391,768.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.