Home / 496,929.28-685,766.64-282,069.76

Finding the Fourth Proportional to 496,929.28, 685,766.64 and 282,069.76

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Solution

The fourth proportional to 496,929.28, 685,766.64 and 282,069.76 is: 389,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,929.28 : 685,766.64 = 282,069.76 : x
  2. Step 2: Convert to fraction form
    496,929.28/685,766.64 = 282,069.76/x
  3. Step 3: Cross multiply
    496,929.28x = 685,766.64 × 282,069.76
  4. Step 4: Simplify right side
    496,929.28x = 193,434,031,560.81
  5. Step 5: Solve for x
    x = 193,434,031,560.81/496,929.28
  6. Step 6: Final answer
    x = 389,258.67

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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.