Home / 1,221,373.72-1,685,697.87-677,684.66

Finding the Fourth Proportional to 1,221,373.72, 1,685,697.87 and 677,684.66

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Solution

The fourth proportional to 1,221,373.72, 1,685,697.87 and 677,684.66 is: 935,316.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,373.72 : 1,685,697.87 = 677,684.66 : x
  2. Step 2: Convert to fraction form
    1,221,373.72/1,685,697.87 = 677,684.66/x
  3. Step 3: Cross multiply
    1,221,373.72x = 1,685,697.87 × 677,684.66
  4. Step 4: Simplify right side
    1,221,373.72x = 1,142,371,593,052.93
  5. Step 5: Solve for x
    x = 1,142,371,593,052.93/1,221,373.72
  6. Step 6: Final answer
    x = 935,316.99

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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.