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Finding the Fourth Proportional to 689,954.42, 951,733.53 and 448,397.88

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Solution

The fourth proportional to 689,954.42, 951,733.53 and 448,397.88 is: 618,526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,954.42 : 951,733.53 = 448,397.88 : x
  2. Step 2: Convert to fraction form
    689,954.42/951,733.53 = 448,397.88/x
  3. Step 3: Cross multiply
    689,954.42x = 951,733.53 × 448,397.88
  4. Step 4: Simplify right side
    689,954.42x = 426,755,295,499.59
  5. Step 5: Solve for x
    x = 426,755,295,499.59/689,954.42
  6. Step 6: Final answer
    x = 618,526.80

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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.