Home / 864,072.40-1,296,108.60-724,104.40

Finding the Fourth Proportional to 864,072.40, 1,296,108.60 and 724,104.40

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Solution

The fourth proportional to 864,072.40, 1,296,108.60 and 724,104.40 is: 1,086,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,072.40 : 1,296,108.60 = 724,104.40 : x
  2. Step 2: Convert to fraction form
    864,072.40/1,296,108.60 = 724,104.40/x
  3. Step 3: Cross multiply
    864,072.40x = 1,296,108.60 × 724,104.40
  4. Step 4: Simplify right side
    864,072.40x = 938,517,940,137.84
  5. Step 5: Solve for x
    x = 938,517,940,137.84/864,072.40
  6. Step 6: Final answer
    x = 1,086,156.60

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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.