Home / 767,878.98-1,151,326.32-318,909.75

Finding the Fourth Proportional to 767,878.98, 1,151,326.32 and 318,909.75

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Solution

The fourth proportional to 767,878.98, 1,151,326.32 and 318,909.75 is: 478,160.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,878.98 : 1,151,326.32 = 318,909.75 : x
  2. Step 2: Convert to fraction form
    767,878.98/1,151,326.32 = 318,909.75/x
  3. Step 3: Cross multiply
    767,878.98x = 1,151,326.32 × 318,909.75
  4. Step 4: Simplify right side
    767,878.98x = 367,169,188,879.62
  5. Step 5: Solve for x
    x = 367,169,188,879.62/767,878.98
  6. Step 6: Final answer
    x = 478,160.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.