Home / 677,431.38-934,868.15-371,488.34

Finding the Fourth Proportional to 677,431.38, 934,868.15 and 371,488.34

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Solution

The fourth proportional to 677,431.38, 934,868.15 and 371,488.34 is: 512,660.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,431.38 : 934,868.15 = 371,488.34 : x
  2. Step 2: Convert to fraction form
    677,431.38/934,868.15 = 371,488.34/x
  3. Step 3: Cross multiply
    677,431.38x = 934,868.15 × 371,488.34
  4. Step 4: Simplify right side
    677,431.38x = 347,292,610,630.59
  5. Step 5: Solve for x
    x = 347,292,610,630.59/677,431.38
  6. Step 6: Final answer
    x = 512,660.94

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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.