Home / 1,277,120.29-1,762,733.07-767,724.25

Finding the Fourth Proportional to 1,277,120.29, 1,762,733.07 and 767,724.25

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Solution

The fourth proportional to 1,277,120.29, 1,762,733.07 and 767,724.25 is: 1,059,644.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,120.29 : 1,762,733.07 = 767,724.25 : x
  2. Step 2: Convert to fraction form
    1,277,120.29/1,762,733.07 = 767,724.25/x
  3. Step 3: Cross multiply
    1,277,120.29x = 1,762,733.07 × 767,724.25
  4. Step 4: Simplify right side
    1,277,120.29x = 1,353,292,924,115.95
  5. Step 5: Solve for x
    x = 1,353,292,924,115.95/1,277,120.29
  6. Step 6: Final answer
    x = 1,059,644.06

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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.