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Finding the Fourth Proportional to 577,291.20, 866,973.60 and 419,697.60

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Solution

The fourth proportional to 577,291.20, 866,973.60 and 419,697.60 is: 630,300.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,291.20 : 866,973.60 = 419,697.60 : x
  2. Step 2: Convert to fraction form
    577,291.20/866,973.60 = 419,697.60/x
  3. Step 3: Cross multiply
    577,291.20x = 866,973.60 × 419,697.60
  4. Step 4: Simplify right side
    577,291.20x = 363,866,739,183.36
  5. Step 5: Solve for x
    x = 363,866,739,183.36/577,291.20
  6. Step 6: Final answer
    x = 630,300.17

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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.