Home / 724,415.09-1,086,622.71-251,100.45

Finding the Fourth Proportional to 724,415.09, 1,086,622.71 and 251,100.45

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Solution

The fourth proportional to 724,415.09, 1,086,622.71 and 251,100.45 is: 376,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,415.09 : 1,086,622.71 = 251,100.45 : x
  2. Step 2: Convert to fraction form
    724,415.09/1,086,622.71 = 251,100.45/x
  3. Step 3: Cross multiply
    724,415.09x = 1,086,622.71 × 251,100.45
  4. Step 4: Simplify right side
    724,415.09x = 272,851,451,461.22
  5. Step 5: Solve for x
    x = 272,851,451,461.22/724,415.09
  6. Step 6: Final answer
    x = 376,650.70

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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.