Home / 731,171.66-1,009,156.37-489,874.94

Finding the Fourth Proportional to 731,171.66, 1,009,156.37 and 489,874.94

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Solution

The fourth proportional to 731,171.66, 1,009,156.37 and 489,874.94 is: 676,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,171.66 : 1,009,156.37 = 489,874.94 : x
  2. Step 2: Convert to fraction form
    731,171.66/1,009,156.37 = 489,874.94/x
  3. Step 3: Cross multiply
    731,171.66x = 1,009,156.37 × 489,874.94
  4. Step 4: Simplify right side
    731,171.66x = 494,360,415,249.09
  5. Step 5: Solve for x
    x = 494,360,415,249.09/731,171.66
  6. Step 6: Final answer
    x = 676,120.86

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1.5x scale

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.