Home / 820,773.18-1,132,549.85-458,189.09

Finding the Fourth Proportional to 820,773.18, 1,132,549.85 and 458,189.09

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Solution

The fourth proportional to 820,773.18, 1,132,549.85 and 458,189.09 is: 632,235.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,773.18 : 1,132,549.85 = 458,189.09 : x
  2. Step 2: Convert to fraction form
    820,773.18/1,132,549.85 = 458,189.09/x
  3. Step 3: Cross multiply
    820,773.18x = 1,132,549.85 × 458,189.09
  4. Step 4: Simplify right side
    820,773.18x = 518,921,977,197.44
  5. Step 5: Solve for x
    x = 518,921,977,197.44/820,773.18
  6. Step 6: Final answer
    x = 632,235.54

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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.