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Finding the Fourth Proportional to 458,593.01, 688,806.31 and 276,587.67

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Solution

The fourth proportional to 458,593.01, 688,806.31 and 276,587.67 is: 415,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,593.01 : 688,806.31 = 276,587.67 : x
  2. Step 2: Convert to fraction form
    458,593.01/688,806.31 = 276,587.67/x
  3. Step 3: Cross multiply
    458,593.01x = 688,806.31 × 276,587.67
  4. Step 4: Simplify right side
    458,593.01x = 190,515,332,364.20
  5. Step 5: Solve for x
    x = 190,515,332,364.20/458,593.01
  6. Step 6: Final answer
    x = 415,434.44

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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.