Home / 687,597.98-948,837.69-381,650.31

Finding the Fourth Proportional to 687,597.98, 948,837.69 and 381,650.31

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Solution

The fourth proportional to 687,597.98, 948,837.69 and 381,650.31 is: 526,651.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,597.98 : 948,837.69 = 381,650.31 : x
  2. Step 2: Convert to fraction form
    687,597.98/948,837.69 = 381,650.31/x
  3. Step 3: Cross multiply
    687,597.98x = 948,837.69 × 381,650.31
  4. Step 4: Simplify right side
    687,597.98x = 362,124,198,528.18
  5. Step 5: Solve for x
    x = 362,124,198,528.18/687,597.98
  6. Step 6: Final answer
    x = 526,651.05

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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.