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Finding the Fourth Proportional to 689,883.09, 951,498.50 and 448,244.16

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Solution

The fourth proportional to 689,883.09, 951,498.50 and 448,244.16 is: 618,225.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,883.09 : 951,498.50 = 448,244.16 : x
  2. Step 2: Convert to fraction form
    689,883.09/951,498.50 = 448,244.16/x
  3. Step 3: Cross multiply
    689,883.09x = 951,498.50 × 448,244.16
  4. Step 4: Simplify right side
    689,883.09x = 426,503,643,632.54
  5. Step 5: Solve for x
    x = 426,503,643,632.54/689,883.09
  6. Step 6: Final answer
    x = 618,225.97

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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.