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Finding the Fourth Proportional to 986,379, 1,361,203.02 and 533,670

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Solution

The fourth proportional to 986,379, 1,361,203.02 and 533,670 is: 736,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,379 : 1,361,203.02 = 533,670 : x
  2. Step 2: Convert to fraction form
    986,379/1,361,203.02 = 533,670/x
  3. Step 3: Cross multiply
    986,379x = 1,361,203.02 × 533,670
  4. Step 4: Simplify right side
    986,379x = 726,433,215,683.40
  5. Step 5: Solve for x
    x = 726,433,215,683.40/986,379
  6. Step 6: Final answer
    x = 736,464.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.