Home / 876,531.45-1,314,872.15-307,863.05

Finding the Fourth Proportional to 876,531.45, 1,314,872.15 and 307,863.05

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Solution

The fourth proportional to 876,531.45, 1,314,872.15 and 307,863.05 is: 461,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,531.45 : 1,314,872.15 = 307,863.05 : x
  2. Step 2: Convert to fraction form
    876,531.45/1,314,872.15 = 307,863.05/x
  3. Step 3: Cross multiply
    876,531.45x = 1,314,872.15 × 307,863.05
  4. Step 4: Simplify right side
    876,531.45x = 404,800,550,459.06
  5. Step 5: Solve for x
    x = 404,800,550,459.06/876,531.45
  6. Step 6: Final answer
    x = 461,820.91

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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.