Home / 840,770.34-1,160,287.64-458,821.72

Finding the Fourth Proportional to 840,770.34, 1,160,287.64 and 458,821.72

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Solution

The fourth proportional to 840,770.34, 1,160,287.64 and 458,821.72 is: 633,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,770.34 : 1,160,287.64 = 458,821.72 : x
  2. Step 2: Convert to fraction form
    840,770.34/1,160,287.64 = 458,821.72/x
  3. Step 3: Cross multiply
    840,770.34x = 1,160,287.64 × 458,821.72
  4. Step 4: Simplify right side
    840,770.34x = 532,365,170,679.54
  5. Step 5: Solve for x
    x = 532,365,170,679.54/840,770.34
  6. Step 6: Final answer
    x = 633,187.38

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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.