Home / 558,639.63-770,940.11-316,932.39

Finding the Fourth Proportional to 558,639.63, 770,940.11 and 316,932.39

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Solution

The fourth proportional to 558,639.63, 770,940.11 and 316,932.39 is: 437,376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,639.63 : 770,940.11 = 316,932.39 : x
  2. Step 2: Convert to fraction form
    558,639.63/770,940.11 = 316,932.39/x
  3. Step 3: Cross multiply
    558,639.63x = 770,940.11 × 316,932.39
  4. Step 4: Simplify right side
    558,639.63x = 244,335,892,401.49
  5. Step 5: Solve for x
    x = 244,335,892,401.49/558,639.63
  6. Step 6: Final answer
    x = 437,376.58

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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.