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Finding the Fourth Proportional to 478,653.86, 660,546.82 and 263,801.76

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Solution

The fourth proportional to 478,653.86, 660,546.82 and 263,801.76 is: 364,048.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,653.86 : 660,546.82 = 263,801.76 : x
  2. Step 2: Convert to fraction form
    478,653.86/660,546.82 = 263,801.76/x
  3. Step 3: Cross multiply
    478,653.86x = 660,546.82 × 263,801.76
  4. Step 4: Simplify right side
    478,653.86x = 174,253,413,678.40
  5. Step 5: Solve for x
    x = 174,253,413,678.40/478,653.86
  6. Step 6: Final answer
    x = 364,048.91

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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.