Home / 558,639.36-770,863.68-316,844.64

Finding the Fourth Proportional to 558,639.36, 770,863.68 and 316,844.64

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Solution

The fourth proportional to 558,639.36, 770,863.68 and 316,844.64 is: 437,212.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,639.36 : 770,863.68 = 316,844.64 : x
  2. Step 2: Convert to fraction form
    558,639.36/770,863.68 = 316,844.64/x
  3. Step 3: Cross multiply
    558,639.36x = 770,863.68 × 316,844.64
  4. Step 4: Simplify right side
    558,639.36x = 244,244,025,178.68
  5. Step 5: Solve for x
    x = 244,244,025,178.68/558,639.36
  6. Step 6: Final answer
    x = 437,212.35

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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.