Home / 958,641.72-1,322,929.80-528,921.60

Finding the Fourth Proportional to 958,641.72, 1,322,929.80 and 528,921.60

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Solution

The fourth proportional to 958,641.72, 1,322,929.80 and 528,921.60 is: 729,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,641.72 : 1,322,929.80 = 528,921.60 : x
  2. Step 2: Convert to fraction form
    958,641.72/1,322,929.80 = 528,921.60/x
  3. Step 3: Cross multiply
    958,641.72x = 1,322,929.80 × 528,921.60
  4. Step 4: Simplify right side
    958,641.72x = 699,726,146,503.68
  5. Step 5: Solve for x
    x = 699,726,146,503.68/958,641.72
  6. Step 6: Final answer
    x = 729,914.14

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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.