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Finding the Fourth Proportional to 555,915.10, 767,245.10 and 351,984.94

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Solution

The fourth proportional to 555,915.10, 767,245.10 and 351,984.94 is: 485,791.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,915.10 : 767,245.10 = 351,984.94 : x
  2. Step 2: Convert to fraction form
    555,915.10/767,245.10 = 351,984.94/x
  3. Step 3: Cross multiply
    555,915.10x = 767,245.10 × 351,984.94
  4. Step 4: Simplify right side
    555,915.10x = 270,058,721,368.76
  5. Step 5: Solve for x
    x = 270,058,721,368.76/555,915.10
  6. Step 6: Final answer
    x = 485,791.31

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1.5x scale

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.