Home / 1,140,186.78-1,573,486.56-687,506.94

Finding the Fourth Proportional to 1,140,186.78, 1,573,486.56 and 687,506.94

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Solution

The fourth proportional to 1,140,186.78, 1,573,486.56 and 687,506.94 is: 948,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,186.78 : 1,573,486.56 = 687,506.94 : x
  2. Step 2: Convert to fraction form
    1,140,186.78/1,573,486.56 = 687,506.94/x
  3. Step 3: Cross multiply
    1,140,186.78x = 1,573,486.56 × 687,506.94
  4. Step 4: Simplify right side
    1,140,186.78x = 1,081,782,929,996.73
  5. Step 5: Solve for x
    x = 1,081,782,929,996.73/1,140,186.78
  6. Step 6: Final answer
    x = 948,776.95

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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.