Home / 478,110.80-659,795.31-274,169.40

Finding the Fourth Proportional to 478,110.80, 659,795.31 and 274,169.40

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Solution

The fourth proportional to 478,110.80, 659,795.31 and 274,169.40 is: 378,355.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,110.80 : 659,795.31 = 274,169.40 : x
  2. Step 2: Convert to fraction form
    478,110.80/659,795.31 = 274,169.40/x
  3. Step 3: Cross multiply
    478,110.80x = 659,795.31 × 274,169.40
  4. Step 4: Simplify right side
    478,110.80x = 180,895,684,265.51
  5. Step 5: Solve for x
    x = 180,895,684,265.51/478,110.80
  6. Step 6: Final answer
    x = 378,355.15

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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.