Home / 820,774.20-1,132,551.21-458,190.09

Finding the Fourth Proportional to 820,774.20, 1,132,551.21 and 458,190.09

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Solution

The fourth proportional to 820,774.20, 1,132,551.21 and 458,190.09 is: 632,236.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,774.20 : 1,132,551.21 = 458,190.09 : x
  2. Step 2: Convert to fraction form
    820,774.20/1,132,551.21 = 458,190.09/x
  3. Step 3: Cross multiply
    820,774.20x = 1,132,551.21 × 458,190.09
  4. Step 4: Simplify right side
    820,774.20x = 518,923,743,670.89
  5. Step 5: Solve for x
    x = 518,923,743,670.89/820,774.20
  6. Step 6: Final answer
    x = 632,236.91

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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.