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Finding the Fourth Proportional to 400,545.02, 600,915.81 and 120,062

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Solution

The fourth proportional to 400,545.02, 600,915.81 and 120,062 is: 180,122.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,545.02 : 600,915.81 = 120,062 : x
  2. Step 2: Convert to fraction form
    400,545.02/600,915.81 = 120,062/x
  3. Step 3: Cross multiply
    400,545.02x = 600,915.81 × 120,062
  4. Step 4: Simplify right side
    400,545.02x = 72,147,153,980.22
  5. Step 5: Solve for x
    x = 72,147,153,980.22/400,545.02
  6. Step 6: Final answer
    x = 180,122.46

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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.