Home / 382,112.78-572,421.78-314,741.53

Finding the Fourth Proportional to 382,112.78, 572,421.78 and 314,741.53

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Solution

The fourth proportional to 382,112.78, 572,421.78 and 314,741.53 is: 471,496.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,112.78 : 572,421.78 = 314,741.53 : x
  2. Step 2: Convert to fraction form
    382,112.78/572,421.78 = 314,741.53/x
  3. Step 3: Cross multiply
    382,112.78x = 572,421.78 × 314,741.53
  4. Step 4: Simplify right side
    382,112.78x = 180,164,906,842.52
  5. Step 5: Solve for x
    x = 180,164,906,842.52/382,112.78
  6. Step 6: Final answer
    x = 471,496.68

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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.