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Finding the Fourth Proportional to 687,573.77, 948,750.68 and 381,652.44

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Solution

The fourth proportional to 687,573.77, 948,750.68 and 381,652.44 is: 526,624.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,573.77 : 948,750.68 = 381,652.44 : x
  2. Step 2: Convert to fraction form
    687,573.77/948,750.68 = 381,652.44/x
  3. Step 3: Cross multiply
    687,573.77x = 948,750.68 × 381,652.44
  4. Step 4: Simplify right side
    687,573.77x = 362,093,010,065.40
  5. Step 5: Solve for x
    x = 362,093,010,065.40/687,573.77
  6. Step 6: Final answer
    x = 526,624.24

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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.