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Finding the Fourth Proportional to 613,118.04, 919,408.96 and 309,325.30

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Solution

The fourth proportional to 613,118.04, 919,408.96 and 309,325.30 is: 463,852.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,118.04 : 919,408.96 = 309,325.30 : x
  2. Step 2: Convert to fraction form
    613,118.04/919,408.96 = 309,325.30/x
  3. Step 3: Cross multiply
    613,118.04x = 919,408.96 × 309,325.30
  4. Step 4: Simplify right side
    613,118.04x = 284,396,452,374.69
  5. Step 5: Solve for x
    x = 284,396,452,374.69/613,118.04
  6. Step 6: Final answer
    x = 463,852.69

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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.