Home / 840,640.20-1,258,886.70-558,630.60

Finding the Fourth Proportional to 840,640.20, 1,258,886.70 and 558,630.60

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Solution

The fourth proportional to 840,640.20, 1,258,886.70 and 558,630.60 is: 836,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,640.20 : 1,258,886.70 = 558,630.60 : x
  2. Step 2: Convert to fraction form
    840,640.20/1,258,886.70 = 558,630.60/x
  3. Step 3: Cross multiply
    840,640.20x = 1,258,886.70 × 558,630.60
  4. Step 4: Simplify right side
    840,640.20x = 703,252,632,553.02
  5. Step 5: Solve for x
    x = 703,252,632,553.02/840,640.20
  6. Step 6: Final answer
    x = 836,567.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.