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Finding the Fourth Proportional to 1,699,657.20, 2,546,764.20 and 899,895.60

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Solution

The fourth proportional to 1,699,657.20, 2,546,764.20 and 899,895.60 is: 1,348,402.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,699,657.20 : 2,546,764.20 = 899,895.60 : x
  2. Step 2: Convert to fraction form
    1,699,657.20/2,546,764.20 = 899,895.60/x
  3. Step 3: Cross multiply
    1,699,657.20x = 2,546,764.20 × 899,895.60
  4. Step 4: Simplify right side
    1,699,657.20x = 2,291,821,897,817.52
  5. Step 5: Solve for x
    x = 2,291,821,897,817.52/1,699,657.20
  6. Step 6: Final answer
    x = 1,348,402.43

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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.