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Finding the Fourth Proportional to 478,633.77, 660,528.44 and 263,787.67

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Solution

The fourth proportional to 478,633.77, 660,528.44 and 263,787.67 is: 364,034.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,633.77 : 660,528.44 = 263,787.67 : x
  2. Step 2: Convert to fraction form
    478,633.77/660,528.44 = 263,787.67/x
  3. Step 3: Cross multiply
    478,633.77x = 660,528.44 × 263,787.67
  4. Step 4: Simplify right side
    478,633.77x = 174,239,258,156.34
  5. Step 5: Solve for x
    x = 174,239,258,156.34/478,633.77
  6. Step 6: Final answer
    x = 364,034.61

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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.