Home / 486,145.80-670,814-271,244.10

Finding the Fourth Proportional to 486,145.80, 670,814 and 271,244.10

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Solution

The fourth proportional to 486,145.80, 670,814 and 271,244.10 is: 374,279.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,145.80 : 670,814 = 271,244.10 : x
  2. Step 2: Convert to fraction form
    486,145.80/670,814 = 271,244.10/x
  3. Step 3: Cross multiply
    486,145.80x = 670,814 × 271,244.10
  4. Step 4: Simplify right side
    486,145.80x = 181,954,339,697.40
  5. Step 5: Solve for x
    x = 181,954,339,697.40/486,145.80
  6. Step 6: Final answer
    x = 374,279.36

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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.