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Finding the Fourth Proportional to 575,325.60, 862,664.40 and 220,351.20

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Solution

The fourth proportional to 575,325.60, 862,664.40 and 220,351.20 is: 330,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,325.60 : 862,664.40 = 220,351.20 : x
  2. Step 2: Convert to fraction form
    575,325.60/862,664.40 = 220,351.20/x
  3. Step 3: Cross multiply
    575,325.60x = 862,664.40 × 220,351.20
  4. Step 4: Simplify right side
    575,325.60x = 190,089,135,737.28
  5. Step 5: Solve for x
    x = 190,089,135,737.28/575,325.60
  6. Step 6: Final answer
    x = 330,402.71

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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.