Home / 671,767.50-1,005,284.70-419,166.90

Finding the Fourth Proportional to 671,767.50, 1,005,284.70 and 419,166.90

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Solution

The fourth proportional to 671,767.50, 1,005,284.70 and 419,166.90 is: 627,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,767.50 : 1,005,284.70 = 419,166.90 : x
  2. Step 2: Convert to fraction form
    671,767.50/1,005,284.70 = 419,166.90/x
  3. Step 3: Cross multiply
    671,767.50x = 1,005,284.70 × 419,166.90
  4. Step 4: Simplify right side
    671,767.50x = 421,382,071,316.43
  5. Step 5: Solve for x
    x = 421,382,071,316.43/671,767.50
  6. Step 6: Final answer
    x = 627,273.68

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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.