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Finding the Fourth Proportional to 478,554.71, 660,434.51 and 263,694.52

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Solution

The fourth proportional to 478,554.71, 660,434.51 and 263,694.52 is: 363,914.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,554.71 : 660,434.51 = 263,694.52 : x
  2. Step 2: Convert to fraction form
    478,554.71/660,434.51 = 263,694.52/x
  3. Step 3: Cross multiply
    478,554.71x = 660,434.51 × 263,694.52
  4. Step 4: Simplify right side
    478,554.71x = 174,152,958,136.33
  5. Step 5: Solve for x
    x = 174,152,958,136.33/478,554.71
  6. Step 6: Final answer
    x = 363,914.41

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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.