Home / 820,421.25-1,132,174.77-476,289.12

Finding the Fourth Proportional to 820,421.25, 1,132,174.77 and 476,289.12

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Solution

The fourth proportional to 820,421.25, 1,132,174.77 and 476,289.12 is: 657,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,421.25 : 1,132,174.77 = 476,289.12 : x
  2. Step 2: Convert to fraction form
    820,421.25/1,132,174.77 = 476,289.12/x
  3. Step 3: Cross multiply
    820,421.25x = 1,132,174.77 × 476,289.12
  4. Step 4: Simplify right side
    820,421.25x = 539,242,524,889.50
  5. Step 5: Solve for x
    x = 539,242,524,889.50/820,421.25
  6. Step 6: Final answer
    x = 657,275.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.