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Finding the Fourth Proportional to 482,498.88, 665,832.56 and 291,478.88

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Solution

The fourth proportional to 482,498.88, 665,832.56 and 291,478.88 is: 402,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,498.88 : 665,832.56 = 291,478.88 : x
  2. Step 2: Convert to fraction form
    482,498.88/665,832.56 = 291,478.88/x
  3. Step 3: Cross multiply
    482,498.88x = 665,832.56 × 291,478.88
  4. Step 4: Simplify right side
    482,498.88x = 194,076,128,856.33
  5. Step 5: Solve for x
    x = 194,076,128,856.33/482,498.88
  6. Step 6: Final answer
    x = 402,231.25

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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.