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Finding the Fourth Proportional to 612,742.02, 844,990.29 and 408,801.23

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Solution

The fourth proportional to 612,742.02, 844,990.29 and 408,801.23 is: 563,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,742.02 : 844,990.29 = 408,801.23 : x
  2. Step 2: Convert to fraction form
    612,742.02/844,990.29 = 408,801.23/x
  3. Step 3: Cross multiply
    612,742.02x = 844,990.29 × 408,801.23
  4. Step 4: Simplify right side
    612,742.02x = 345,433,069,890.06
  5. Step 5: Solve for x
    x = 345,433,069,890.06/612,742.02
  6. Step 6: Final answer
    x = 563,749.60

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