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Finding the Fourth Proportional to 483,755.64, 666,058.14 and 438,915.30

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Solution

The fourth proportional to 483,755.64, 666,058.14 and 438,915.30 is: 604,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,755.64 : 666,058.14 = 438,915.30 : x
  2. Step 2: Convert to fraction form
    483,755.64/666,058.14 = 438,915.30/x
  3. Step 3: Cross multiply
    483,755.64x = 666,058.14 × 438,915.30
  4. Step 4: Simplify right side
    483,755.64x = 292,343,108,335.54
  5. Step 5: Solve for x
    x = 292,343,108,335.54/483,755.64
  6. Step 6: Final answer
    x = 604,319.79

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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.