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Finding the Fourth Proportional to 478,850.62, 660,838.29 and 263,990.17

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Solution

The fourth proportional to 478,850.62, 660,838.29 and 263,990.17 is: 364,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,850.62 : 660,838.29 = 263,990.17 : x
  2. Step 2: Convert to fraction form
    478,850.62/660,838.29 = 263,990.17/x
  3. Step 3: Cross multiply
    478,850.62x = 660,838.29 × 263,990.17
  4. Step 4: Simplify right side
    478,850.62x = 174,454,814,335.62
  5. Step 5: Solve for x
    x = 174,454,814,335.62/478,850.62
  6. Step 6: Final answer
    x = 364,319.91

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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.