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Finding the Fourth Proportional to 501,343.08, 752,655.76 and 430,717.56

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Solution

The fourth proportional to 501,343.08, 752,655.76 and 430,717.56 is: 646,627.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,343.08 : 752,655.76 = 430,717.56 : x
  2. Step 2: Convert to fraction form
    501,343.08/752,655.76 = 430,717.56/x
  3. Step 3: Cross multiply
    501,343.08x = 752,655.76 × 430,717.56
  4. Step 4: Simplify right side
    501,343.08x = 324,182,052,467.15
  5. Step 5: Solve for x
    x = 324,182,052,467.15/501,343.08
  6. Step 6: Final answer
    x = 646,627.16

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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.