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Finding the Fourth Proportional to 478,694.66, 660,602.66 and 263,835.28

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Solution

The fourth proportional to 478,694.66, 660,602.66 and 263,835.28 is: 364,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,694.66 : 660,602.66 = 263,835.28 : x
  2. Step 2: Convert to fraction form
    478,694.66/660,602.66 = 263,835.28/x
  3. Step 3: Cross multiply
    478,694.66x = 660,602.66 × 263,835.28
  4. Step 4: Simplify right side
    478,694.66x = 174,290,284,799.16
  5. Step 5: Solve for x
    x = 174,290,284,799.16/478,694.66
  6. Step 6: Final answer
    x = 364,094.90

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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.