Home / 827,431.98-1,241,160.45-315,125.48

Finding the Fourth Proportional to 827,431.98, 1,241,160.45 and 315,125.48

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Solution

The fourth proportional to 827,431.98, 1,241,160.45 and 315,125.48 is: 472,692.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,431.98 : 1,241,160.45 = 315,125.48 : x
  2. Step 2: Convert to fraction form
    827,431.98/1,241,160.45 = 315,125.48/x
  3. Step 3: Cross multiply
    827,431.98x = 1,241,160.45 × 315,125.48
  4. Step 4: Simplify right side
    827,431.98x = 391,121,282,563.27
  5. Step 5: Solve for x
    x = 391,121,282,563.27/827,431.98
  6. Step 6: Final answer
    x = 472,692.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.