Home / 1,438,818.34-1,986,160.58-981,442.66

Finding the Fourth Proportional to 1,438,818.34, 1,986,160.58 and 981,442.66

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Solution

The fourth proportional to 1,438,818.34, 1,986,160.58 and 981,442.66 is: 1,354,794.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,818.34 : 1,986,160.58 = 981,442.66 : x
  2. Step 2: Convert to fraction form
    1,438,818.34/1,986,160.58 = 981,442.66/x
  3. Step 3: Cross multiply
    1,438,818.34x = 1,986,160.58 × 981,442.66
  4. Step 4: Simplify right side
    1,438,818.34x = 1,949,302,715,345.15
  5. Step 5: Solve for x
    x = 1,949,302,715,345.15/1,438,818.34
  6. Step 6: Final answer
    x = 1,354,794.19

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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.