Home / 958,478.09-1,322,704.08-528,758.10

Finding the Fourth Proportional to 958,478.09, 1,322,704.08 and 528,758.10

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Solution

The fourth proportional to 958,478.09, 1,322,704.08 and 528,758.10 is: 729,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,478.09 : 1,322,704.08 = 528,758.10 : x
  2. Step 2: Convert to fraction form
    958,478.09/1,322,704.08 = 528,758.10/x
  3. Step 3: Cross multiply
    958,478.09x = 1,322,704.08 × 528,758.10
  4. Step 4: Simplify right side
    958,478.09x = 699,390,496,203.05
  5. Step 5: Solve for x
    x = 699,390,496,203.05/958,478.09
  6. Step 6: Final answer
    x = 729,688.56

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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.