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Finding the Fourth Proportional to 482,659.88, 666,088.50 and 291,636.32

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Solution

The fourth proportional to 482,659.88, 666,088.50 and 291,636.32 is: 402,468.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,659.88 : 666,088.50 = 291,636.32 : x
  2. Step 2: Convert to fraction form
    482,659.88/666,088.50 = 291,636.32/x
  3. Step 3: Cross multiply
    482,659.88x = 666,088.50 × 291,636.32
  4. Step 4: Simplify right side
    482,659.88x = 194,255,598,934.32
  5. Step 5: Solve for x
    x = 194,255,598,934.32/482,659.88
  6. Step 6: Final answer
    x = 402,468.92

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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.