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Finding the Fourth Proportional to 400,693.96, 601,060.38 and 330,445

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Solution

The fourth proportional to 400,693.96, 601,060.38 and 330,445 is: 495,683.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,693.96 : 601,060.38 = 330,445 : x
  2. Step 2: Convert to fraction form
    400,693.96/601,060.38 = 330,445/x
  3. Step 3: Cross multiply
    400,693.96x = 601,060.38 × 330,445
  4. Step 4: Simplify right side
    400,693.96x = 198,617,397,269.10
  5. Step 5: Solve for x
    x = 198,617,397,269.10/400,693.96
  6. Step 6: Final answer
    x = 495,683.53

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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.