Home / 1,247,146.89-1,720,940.94-723,776.13

Finding the Fourth Proportional to 1,247,146.89, 1,720,940.94 and 723,776.13

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Solution

The fourth proportional to 1,247,146.89, 1,720,940.94 and 723,776.13 is: 998,740.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,146.89 : 1,720,940.94 = 723,776.13 : x
  2. Step 2: Convert to fraction form
    1,247,146.89/1,720,940.94 = 723,776.13/x
  3. Step 3: Cross multiply
    1,247,146.89x = 1,720,940.94 × 723,776.13
  4. Step 4: Simplify right side
    1,247,146.89x = 1,245,575,973,511.76
  5. Step 5: Solve for x
    x = 1,245,575,973,511.76/1,247,146.89
  6. Step 6: Final answer
    x = 998,740.39

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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.