Home / 665,829.35-918,844.53-359,904.73

Finding the Fourth Proportional to 665,829.35, 918,844.53 and 359,904.73

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Solution

The fourth proportional to 665,829.35, 918,844.53 and 359,904.73 is: 496,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,829.35 : 918,844.53 = 359,904.73 : x
  2. Step 2: Convert to fraction form
    665,829.35/918,844.53 = 359,904.73/x
  3. Step 3: Cross multiply
    665,829.35x = 918,844.53 × 359,904.73
  4. Step 4: Simplify right side
    665,829.35x = 330,696,491,010.15
  5. Step 5: Solve for x
    x = 330,696,491,010.15/665,829.35
  6. Step 6: Final answer
    x = 496,668.54

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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.