Home / 821,370.89-1,229,058.90-484,572.89

Finding the Fourth Proportional to 821,370.89, 1,229,058.90 and 484,572.89

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Solution

The fourth proportional to 821,370.89, 1,229,058.90 and 484,572.89 is: 725,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,370.89 : 1,229,058.90 = 484,572.89 : x
  2. Step 2: Convert to fraction form
    821,370.89/1,229,058.90 = 484,572.89/x
  3. Step 3: Cross multiply
    821,370.89x = 1,229,058.90 × 484,572.89
  4. Step 4: Simplify right side
    821,370.89x = 595,568,617,007.93
  5. Step 5: Solve for x
    x = 595,568,617,007.93/821,370.89
  6. Step 6: Final answer
    x = 725,090.98

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Double scale
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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.