Home / 1,270,311.52-1,753,031.58-689,534.28

Finding the Fourth Proportional to 1,270,311.52, 1,753,031.58 and 689,534.28

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Solution

The fourth proportional to 1,270,311.52, 1,753,031.58 and 689,534.28 is: 951,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,311.52 : 1,753,031.58 = 689,534.28 : x
  2. Step 2: Convert to fraction form
    1,270,311.52/1,753,031.58 = 689,534.28/x
  3. Step 3: Cross multiply
    1,270,311.52x = 1,753,031.58 × 689,534.28
  4. Step 4: Simplify right side
    1,270,311.52x = 1,208,775,361,360.85
  5. Step 5: Solve for x
    x = 1,208,775,361,360.85/1,270,311.52
  6. Step 6: Final answer
    x = 951,558.22

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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.