Home / 487,391.71-671,105.24-426,622.27

Finding the Fourth Proportional to 487,391.71, 671,105.24 and 426,622.27

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Solution

The fourth proportional to 487,391.71, 671,105.24 and 426,622.27 is: 587,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,391.71 : 671,105.24 = 426,622.27 : x
  2. Step 2: Convert to fraction form
    487,391.71/671,105.24 = 426,622.27/x
  3. Step 3: Cross multiply
    487,391.71x = 671,105.24 × 426,622.27
  4. Step 4: Simplify right side
    487,391.71x = 286,308,438,764.58
  5. Step 5: Solve for x
    x = 286,308,438,764.58/487,391.71
  6. Step 6: Final answer
    x = 587,429.85

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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.