Home / 725,519.36-1,088,391.72-370,341.20

Finding the Fourth Proportional to 725,519.36, 1,088,391.72 and 370,341.20

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Solution

The fourth proportional to 725,519.36, 1,088,391.72 and 370,341.20 is: 555,569.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,519.36 : 1,088,391.72 = 370,341.20 : x
  2. Step 2: Convert to fraction form
    725,519.36/1,088,391.72 = 370,341.20/x
  3. Step 3: Cross multiply
    725,519.36x = 1,088,391.72 × 370,341.20
  4. Step 4: Simplify right side
    725,519.36x = 403,076,295,654.86
  5. Step 5: Solve for x
    x = 403,076,295,654.86/725,519.36
  6. Step 6: Final answer
    x = 555,569.32

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Double scale
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Similar ratio
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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.