Home / 815,520.03-1,125,431.55-448,012.62

Finding the Fourth Proportional to 815,520.03, 1,125,431.55 and 448,012.62

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Solution

The fourth proportional to 815,520.03, 1,125,431.55 and 448,012.62 is: 618,265.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,520.03 : 1,125,431.55 = 448,012.62 : x
  2. Step 2: Convert to fraction form
    815,520.03/1,125,431.55 = 448,012.62/x
  3. Step 3: Cross multiply
    815,520.03x = 1,125,431.55 × 448,012.62
  4. Step 4: Simplify right side
    815,520.03x = 504,207,537,346.16
  5. Step 5: Solve for x
    x = 504,207,537,346.16/815,520.03
  6. Step 6: Final answer
    x = 618,265.06

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Double scale
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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.