Home / 687,598.37-948,838.18-381,650.66

Finding the Fourth Proportional to 687,598.37, 948,838.18 and 381,650.66

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Solution

The fourth proportional to 687,598.37, 948,838.18 and 381,650.66 is: 526,651.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,598.37 : 948,838.18 = 381,650.66 : x
  2. Step 2: Convert to fraction form
    687,598.37/948,838.18 = 381,650.66/x
  3. Step 3: Cross multiply
    687,598.37x = 948,838.18 × 381,650.66
  4. Step 4: Simplify right side
    687,598.37x = 362,124,717,630.20
  5. Step 5: Solve for x
    x = 362,124,717,630.20/687,598.37
  6. Step 6: Final answer
    x = 526,651.51

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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.