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Finding the Fourth Proportional to 550,256.76, 759,031.80 and 345,983.94

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Solution

The fourth proportional to 550,256.76, 759,031.80 and 345,983.94 is: 477,255.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,256.76 : 759,031.80 = 345,983.94 : x
  2. Step 2: Convert to fraction form
    550,256.76/759,031.80 = 345,983.94/x
  3. Step 3: Cross multiply
    550,256.76x = 759,031.80 × 345,983.94
  4. Step 4: Simplify right side
    550,256.76x = 262,612,812,749.29
  5. Step 5: Solve for x
    x = 262,612,812,749.29/550,256.76
  6. Step 6: Final answer
    x = 477,255.04

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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.