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Finding the Fourth Proportional to 407,320.60, 610,980.90 and 401,099.80

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Solution

The fourth proportional to 407,320.60, 610,980.90 and 401,099.80 is: 601,649.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,320.60 : 610,980.90 = 401,099.80 : x
  2. Step 2: Convert to fraction form
    407,320.60/610,980.90 = 401,099.80/x
  3. Step 3: Cross multiply
    407,320.60x = 610,980.90 × 401,099.80
  4. Step 4: Simplify right side
    407,320.60x = 245,064,316,793.82
  5. Step 5: Solve for x
    x = 245,064,316,793.82/407,320.60
  6. Step 6: Final answer
    x = 601,649.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.