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Finding the Fourth Proportional to 609,601.60, 912,652.80 and 373,405.60

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Solution

The fourth proportional to 609,601.60, 912,652.80 and 373,405.60 is: 559,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,601.60 : 912,652.80 = 373,405.60 : x
  2. Step 2: Convert to fraction form
    609,601.60/912,652.80 = 373,405.60/x
  3. Step 3: Cross multiply
    609,601.60x = 912,652.80 × 373,405.60
  4. Step 4: Simplify right side
    609,601.60x = 340,789,666,375.68
  5. Step 5: Solve for x
    x = 340,789,666,375.68/609,601.60
  6. Step 6: Final answer
    x = 559,036.70

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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.