Home / 664,389.15-916,886.84-374,100.54

Finding the Fourth Proportional to 664,389.15, 916,886.84 and 374,100.54

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Solution

The fourth proportional to 664,389.15, 916,886.84 and 374,100.54 is: 516,275.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,389.15 : 916,886.84 = 374,100.54 : x
  2. Step 2: Convert to fraction form
    664,389.15/916,886.84 = 374,100.54/x
  3. Step 3: Cross multiply
    664,389.15x = 916,886.84 × 374,100.54
  4. Step 4: Simplify right side
    664,389.15x = 343,007,865,190.36
  5. Step 5: Solve for x
    x = 343,007,865,190.36/664,389.15
  6. Step 6: Final answer
    x = 516,275.54

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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.