Home / 496,719.61-685,487.75-351,784.69

Finding the Fourth Proportional to 496,719.61, 685,487.75 and 351,784.69

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Solution

The fourth proportional to 496,719.61, 685,487.75 and 351,784.69 is: 485,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,719.61 : 685,487.75 = 351,784.69 : x
  2. Step 2: Convert to fraction form
    496,719.61/685,487.75 = 351,784.69/x
  3. Step 3: Cross multiply
    496,719.61x = 685,487.75 × 351,784.69
  4. Step 4: Simplify right side
    496,719.61x = 241,144,092,159.91
  5. Step 5: Solve for x
    x = 241,144,092,159.91/496,719.61
  6. Step 6: Final answer
    x = 485,473.27

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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.