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Finding the Fourth Proportional to 404,900.60, 607,350.90 and 272,190.20

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Solution

The fourth proportional to 404,900.60, 607,350.90 and 272,190.20 is: 408,285.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,900.60 : 607,350.90 = 272,190.20 : x
  2. Step 2: Convert to fraction form
    404,900.60/607,350.90 = 272,190.20/x
  3. Step 3: Cross multiply
    404,900.60x = 607,350.90 × 272,190.20
  4. Step 4: Simplify right side
    404,900.60x = 165,314,962,941.18
  5. Step 5: Solve for x
    x = 165,314,962,941.18/404,900.60
  6. Step 6: Final answer
    x = 408,285.30

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1.5x scale

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.