Home / 487,139.10-729,671.85-404,195.10

Finding the Fourth Proportional to 487,139.10, 729,671.85 and 404,195.10

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Solution

The fourth proportional to 487,139.10, 729,671.85 and 404,195.10 is: 605,432.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,139.10 : 729,671.85 = 404,195.10 : x
  2. Step 2: Convert to fraction form
    487,139.10/729,671.85 = 404,195.10/x
  3. Step 3: Cross multiply
    487,139.10x = 729,671.85 × 404,195.10
  4. Step 4: Simplify right side
    487,139.10x = 294,929,786,377.94
  5. Step 5: Solve for x
    x = 294,929,786,377.94/487,139.10
  6. Step 6: Final answer
    x = 605,432.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.