Home / 853,285.05-1,281,403.80-555,087.60

Finding the Fourth Proportional to 853,285.05, 1,281,403.80 and 555,087.60

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Solution

The fourth proportional to 853,285.05, 1,281,403.80 and 555,087.60 is: 833,591.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,285.05 : 1,281,403.80 = 555,087.60 : x
  2. Step 2: Convert to fraction form
    853,285.05/1,281,403.80 = 555,087.60/x
  3. Step 3: Cross multiply
    853,285.05x = 1,281,403.80 × 555,087.60
  4. Step 4: Simplify right side
    853,285.05x = 711,291,359,972.88
  5. Step 5: Solve for x
    x = 711,291,359,972.88/853,285.05
  6. Step 6: Final answer
    x = 833,591.73

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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.