Home / 1,212,338.80-1,818,508.20-739,946.80

Finding the Fourth Proportional to 1,212,338.80, 1,818,508.20 and 739,946.80

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Solution

The fourth proportional to 1,212,338.80, 1,818,508.20 and 739,946.80 is: 1,109,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,338.80 : 1,818,508.20 = 739,946.80 : x
  2. Step 2: Convert to fraction form
    1,212,338.80/1,818,508.20 = 739,946.80/x
  3. Step 3: Cross multiply
    1,212,338.80x = 1,818,508.20 × 739,946.80
  4. Step 4: Simplify right side
    1,212,338.80x = 1,345,599,323,363.76
  5. Step 5: Solve for x
    x = 1,345,599,323,363.76/1,212,338.80
  6. Step 6: Final answer
    x = 1,109,920.20

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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.