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Finding the Fourth Proportional to 566,478.42, 781,756.60 and 308,372.10

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Solution

The fourth proportional to 566,478.42, 781,756.60 and 308,372.10 is: 425,562.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,478.42 : 781,756.60 = 308,372.10 : x
  2. Step 2: Convert to fraction form
    566,478.42/781,756.60 = 308,372.10/x
  3. Step 3: Cross multiply
    566,478.42x = 781,756.60 × 308,372.10
  4. Step 4: Simplify right side
    566,478.42x = 241,071,924,430.86
  5. Step 5: Solve for x
    x = 241,071,924,430.86/566,478.42
  6. Step 6: Final answer
    x = 425,562.41

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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.