Home / 1,079,756.57-1,490,064.05-627,076.73

Finding the Fourth Proportional to 1,079,756.57, 1,490,064.05 and 627,076.73

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Solution

The fourth proportional to 1,079,756.57, 1,490,064.05 and 627,076.73 is: 865,365.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,756.57 : 1,490,064.05 = 627,076.73 : x
  2. Step 2: Convert to fraction form
    1,079,756.57/1,490,064.05 = 627,076.73/x
  3. Step 3: Cross multiply
    1,079,756.57x = 1,490,064.05 × 627,076.73
  4. Step 4: Simplify right side
    1,079,756.57x = 934,384,488,829.17
  5. Step 5: Solve for x
    x = 934,384,488,829.17/1,079,756.57
  6. Step 6: Final answer
    x = 865,365.87

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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.