Home / 874,190.85-1,310,954.12-418,314.12

Finding the Fourth Proportional to 874,190.85, 1,310,954.12 and 418,314.12

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Solution

The fourth proportional to 874,190.85, 1,310,954.12 and 418,314.12 is: 627,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,190.85 : 1,310,954.12 = 418,314.12 : x
  2. Step 2: Convert to fraction form
    874,190.85/1,310,954.12 = 418,314.12/x
  3. Step 3: Cross multiply
    874,190.85x = 1,310,954.12 × 418,314.12
  4. Step 4: Simplify right side
    874,190.85x = 548,390,621,003.32
  5. Step 5: Solve for x
    x = 548,390,621,003.32/874,190.85
  6. Step 6: Final answer
    x = 627,312.24

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1.5x scale

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.