Home / 671,867.89-1,005,434.78-419,267.23

Finding the Fourth Proportional to 671,867.89, 1,005,434.78 and 419,267.23

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Solution

The fourth proportional to 671,867.89, 1,005,434.78 and 419,267.23 is: 627,423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,867.89 : 1,005,434.78 = 419,267.23 : x
  2. Step 2: Convert to fraction form
    671,867.89/1,005,434.78 = 419,267.23/x
  3. Step 3: Cross multiply
    671,867.89x = 1,005,434.78 × 419,267.23
  4. Step 4: Simplify right side
    671,867.89x = 421,545,850,546.34
  5. Step 5: Solve for x
    x = 421,545,850,546.34/671,867.89
  6. Step 6: Final answer
    x = 627,423.72

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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.