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Finding the Fourth Proportional to 478,695.32, 660,602.67 and 263,835.38

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Solution

The fourth proportional to 478,695.32, 660,602.67 and 263,835.38 is: 364,094.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,695.32 : 660,602.67 = 263,835.38 : x
  2. Step 2: Convert to fraction form
    478,695.32/660,602.67 = 263,835.38/x
  3. Step 3: Cross multiply
    478,695.32x = 660,602.67 × 263,835.38
  4. Step 4: Simplify right side
    478,695.32x = 174,290,356,468.47
  5. Step 5: Solve for x
    x = 174,290,356,468.47/478,695.32
  6. Step 6: Final answer
    x = 364,094.55

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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.