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Finding the Fourth Proportional to 525,226.26, 724,802.39 and 321,262.20

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Solution

The fourth proportional to 525,226.26, 724,802.39 and 321,262.20 is: 443,335.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,226.26 : 724,802.39 = 321,262.20 : x
  2. Step 2: Convert to fraction form
    525,226.26/724,802.39 = 321,262.20/x
  3. Step 3: Cross multiply
    525,226.26x = 724,802.39 × 321,262.20
  4. Step 4: Simplify right side
    525,226.26x = 232,851,613,820.69
  5. Step 5: Solve for x
    x = 232,851,613,820.69/525,226.26
  6. Step 6: Final answer
    x = 443,335.82

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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.