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Finding the Fourth Proportional to 999,279.33, 1,495,998.81 and 744,243

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Solution

The fourth proportional to 999,279.33, 1,495,998.81 and 744,243 is: 1,114,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,279.33 : 1,495,998.81 = 744,243 : x
  2. Step 2: Convert to fraction form
    999,279.33/1,495,998.81 = 744,243/x
  3. Step 3: Cross multiply
    999,279.33x = 1,495,998.81 × 744,243
  4. Step 4: Simplify right side
    999,279.33x = 1,113,386,642,350.83
  5. Step 5: Solve for x
    x = 1,113,386,642,350.83/999,279.33
  6. Step 6: Final answer
    x = 1,114,189.61

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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.