Home / 530,001-731,401.38-303,777.72

Finding the Fourth Proportional to 530,001, 731,401.38 and 303,777.72

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Solution

The fourth proportional to 530,001, 731,401.38 and 303,777.72 is: 419,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,001 : 731,401.38 = 303,777.72 : x
  2. Step 2: Convert to fraction form
    530,001/731,401.38 = 303,777.72/x
  3. Step 3: Cross multiply
    530,001x = 731,401.38 × 303,777.72
  4. Step 4: Simplify right side
    530,001x = 222,183,443,621.25
  5. Step 5: Solve for x
    x = 222,183,443,621.25/530,001
  6. Step 6: Final answer
    x = 419,213.25

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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.