Home / 1,288,658.34-1,778,542.41-927,278.46

Finding the Fourth Proportional to 1,288,658.34, 1,778,542.41 and 927,278.46

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Solution

The fourth proportional to 1,288,658.34, 1,778,542.41 and 927,278.46 is: 1,279,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,658.34 : 1,778,542.41 = 927,278.46 : x
  2. Step 2: Convert to fraction form
    1,288,658.34/1,778,542.41 = 927,278.46/x
  3. Step 3: Cross multiply
    1,288,658.34x = 1,778,542.41 × 927,278.46
  4. Step 4: Simplify right side
    1,288,658.34x = 1,649,204,066,989.49
  5. Step 5: Solve for x
    x = 1,649,204,066,989.49/1,288,658.34
  6. Step 6: Final answer
    x = 1,279,783.80

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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.