Home / 687,529.85-948,773.45-381,597.28

Finding the Fourth Proportional to 687,529.85, 948,773.45 and 381,597.28

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Solution

The fourth proportional to 687,529.85, 948,773.45 and 381,597.28 is: 526,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,529.85 : 948,773.45 = 381,597.28 : x
  2. Step 2: Convert to fraction form
    687,529.85/948,773.45 = 381,597.28/x
  3. Step 3: Cross multiply
    687,529.85x = 948,773.45 × 381,597.28
  4. Step 4: Simplify right side
    687,529.85x = 362,049,366,438.28
  5. Step 5: Solve for x
    x = 362,049,366,438.28/687,529.85
  6. Step 6: Final answer
    x = 526,594.40

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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.