Home / 394,316.10-590,599.35-305,280.90

Finding the Fourth Proportional to 394,316.10, 590,599.35 and 305,280.90

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Solution

The fourth proportional to 394,316.10, 590,599.35 and 305,280.90 is: 457,244.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,316.10 : 590,599.35 = 305,280.90 : x
  2. Step 2: Convert to fraction form
    394,316.10/590,599.35 = 305,280.90/x
  3. Step 3: Cross multiply
    394,316.10x = 590,599.35 × 305,280.90
  4. Step 4: Simplify right side
    394,316.10x = 180,298,701,107.42
  5. Step 5: Solve for x
    x = 180,298,701,107.42/394,316.10
  6. Step 6: Final answer
    x = 457,244.08

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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.