Home / 1,680,431.64-2,520,634.50-418,250.76

Finding the Fourth Proportional to 1,680,431.64, 2,520,634.50 and 418,250.76

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Solution

The fourth proportional to 1,680,431.64, 2,520,634.50 and 418,250.76 is: 627,372.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,431.64 : 2,520,634.50 = 418,250.76 : x
  2. Step 2: Convert to fraction form
    1,680,431.64/2,520,634.50 = 418,250.76/x
  3. Step 3: Cross multiply
    1,680,431.64x = 2,520,634.50 × 418,250.76
  4. Step 4: Simplify right side
    1,680,431.64x = 1,054,257,295,307.22
  5. Step 5: Solve for x
    x = 1,054,257,295,307.22/1,680,431.64
  6. Step 6: Final answer
    x = 627,372.91

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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.