Home / 587,913.50-811,467.54-361,427.78

Finding the Fourth Proportional to 587,913.50, 811,467.54 and 361,427.78

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Solution

The fourth proportional to 587,913.50, 811,467.54 and 361,427.78 is: 498,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,913.50 : 811,467.54 = 361,427.78 : x
  2. Step 2: Convert to fraction form
    587,913.50/811,467.54 = 361,427.78/x
  3. Step 3: Cross multiply
    587,913.50x = 811,467.54 × 361,427.78
  4. Step 4: Simplify right side
    587,913.50x = 293,286,911,524.26
  5. Step 5: Solve for x
    x = 293,286,911,524.26/587,913.50
  6. Step 6: Final answer
    x = 498,860.65

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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.