Home / 911,997.60-1,258,383.44-572,312.76

Finding the Fourth Proportional to 911,997.60, 1,258,383.44 and 572,312.76

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Solution

The fourth proportional to 911,997.60, 1,258,383.44 and 572,312.76 is: 789,682.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,997.60 : 1,258,383.44 = 572,312.76 : x
  2. Step 2: Convert to fraction form
    911,997.60/1,258,383.44 = 572,312.76/x
  3. Step 3: Cross multiply
    911,997.60x = 1,258,383.44 × 572,312.76
  4. Step 4: Simplify right side
    911,997.60x = 720,188,899,684.69
  5. Step 5: Solve for x
    x = 720,188,899,684.69/911,997.60
  6. Step 6: Final answer
    x = 789,682.89

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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.