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Finding the Fourth Proportional to 561,638.86, 775,115.88 and 332,269.90

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Solution

The fourth proportional to 561,638.86, 775,115.88 and 332,269.90 is: 458,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,638.86 : 775,115.88 = 332,269.90 : x
  2. Step 2: Convert to fraction form
    561,638.86/775,115.88 = 332,269.90/x
  3. Step 3: Cross multiply
    561,638.86x = 775,115.88 × 332,269.90
  4. Step 4: Simplify right side
    561,638.86x = 257,547,674,621.23
  5. Step 5: Solve for x
    x = 257,547,674,621.23/561,638.86
  6. Step 6: Final answer
    x = 458,564.55

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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.