Home / 478,581.61-660,447.05-263,729.36

Finding the Fourth Proportional to 478,581.61, 660,447.05 and 263,729.36

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Solution

The fourth proportional to 478,581.61, 660,447.05 and 263,729.36 is: 363,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,581.61 : 660,447.05 = 263,729.36 : x
  2. Step 2: Convert to fraction form
    478,581.61/660,447.05 = 263,729.36/x
  3. Step 3: Cross multiply
    478,581.61x = 660,447.05 × 263,729.36
  4. Step 4: Simplify right side
    478,581.61x = 174,179,277,810.39
  5. Step 5: Solve for x
    x = 174,179,277,810.39/478,581.61
  6. Step 6: Final answer
    x = 363,948.96

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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.