Home / 687,475.73-948,702.24-381,534.35

Finding the Fourth Proportional to 687,475.73, 948,702.24 and 381,534.35

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Solution

The fourth proportional to 687,475.73, 948,702.24 and 381,534.35 is: 526,509.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,475.73 : 948,702.24 = 381,534.35 : x
  2. Step 2: Convert to fraction form
    687,475.73/948,702.24 = 381,534.35/x
  3. Step 3: Cross multiply
    687,475.73x = 948,702.24 × 381,534.35
  4. Step 4: Simplify right side
    687,475.73x = 361,962,487,738.43
  5. Step 5: Solve for x
    x = 361,962,487,738.43/687,475.73
  6. Step 6: Final answer
    x = 526,509.48

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1.5x scale

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.