Home / 1,296,263.89-1,788,842.78-723,304.11

Finding the Fourth Proportional to 1,296,263.89, 1,788,842.78 and 723,304.11

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Solution

The fourth proportional to 1,296,263.89, 1,788,842.78 and 723,304.11 is: 998,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,263.89 : 1,788,842.78 = 723,304.11 : x
  2. Step 2: Convert to fraction form
    1,296,263.89/1,788,842.78 = 723,304.11/x
  3. Step 3: Cross multiply
    1,296,263.89x = 1,788,842.78 × 723,304.11
  4. Step 4: Simplify right side
    1,296,263.89x = 1,293,877,340,721.86
  5. Step 5: Solve for x
    x = 1,293,877,340,721.86/1,296,263.89
  6. Step 6: Final answer
    x = 998,158.90

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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.