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Finding the Fourth Proportional to 510,682.60, 705,043.76 and 453,929.92

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Solution

The fourth proportional to 510,682.60, 705,043.76 and 453,929.92 is: 626,691.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,682.60 : 705,043.76 = 453,929.92 : x
  2. Step 2: Convert to fraction form
    510,682.60/705,043.76 = 453,929.92/x
  3. Step 3: Cross multiply
    510,682.60x = 705,043.76 × 453,929.92
  4. Step 4: Simplify right side
    510,682.60x = 320,040,457,573.30
  5. Step 5: Solve for x
    x = 320,040,457,573.30/510,682.60
  6. Step 6: Final answer
    x = 626,691.53

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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.