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Finding the Fourth Proportional to 810,156.50, 1,118,016 and 452,460.50

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Solution

The fourth proportional to 810,156.50, 1,118,016 and 452,460.50 is: 624,395.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,156.50 : 1,118,016 = 452,460.50 : x
  2. Step 2: Convert to fraction form
    810,156.50/1,118,016 = 452,460.50/x
  3. Step 3: Cross multiply
    810,156.50x = 1,118,016 × 452,460.50
  4. Step 4: Simplify right side
    810,156.50x = 505,858,078,368
  5. Step 5: Solve for x
    x = 505,858,078,368/810,156.50
  6. Step 6: Final answer
    x = 624,395.51

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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.