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Finding the Fourth Proportional to 616,255.90, 850,427.28 and 344,370.64

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Solution

The fourth proportional to 616,255.90, 850,427.28 and 344,370.64 is: 475,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,255.90 : 850,427.28 = 344,370.64 : x
  2. Step 2: Convert to fraction form
    616,255.90/850,427.28 = 344,370.64/x
  3. Step 3: Cross multiply
    616,255.90x = 850,427.28 × 344,370.64
  4. Step 4: Simplify right side
    616,255.90x = 292,862,186,687.06
  5. Step 5: Solve for x
    x = 292,862,186,687.06/616,255.90
  6. Step 6: Final answer
    x = 475,228.21

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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.