Home / 855,654.08-1,180,431.88-515,933.60

Finding the Fourth Proportional to 855,654.08, 1,180,431.88 and 515,933.60

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Solution

The fourth proportional to 855,654.08, 1,180,431.88 and 515,933.60 is: 711,764.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,654.08 : 1,180,431.88 = 515,933.60 : x
  2. Step 2: Convert to fraction form
    855,654.08/1,180,431.88 = 515,933.60/x
  3. Step 3: Cross multiply
    855,654.08x = 1,180,431.88 × 515,933.60
  4. Step 4: Simplify right side
    855,654.08x = 609,024,462,211.18
  5. Step 5: Solve for x
    x = 609,024,462,211.18/855,654.08
  6. Step 6: Final answer
    x = 711,764.81

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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.