Home / 759,520.88-1,048,136.20-428,350.64

Finding the Fourth Proportional to 759,520.88, 1,048,136.20 and 428,350.64

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Solution

The fourth proportional to 759,520.88, 1,048,136.20 and 428,350.64 is: 591,122.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,520.88 : 1,048,136.20 = 428,350.64 : x
  2. Step 2: Convert to fraction form
    759,520.88/1,048,136.20 = 428,350.64/x
  3. Step 3: Cross multiply
    759,520.88x = 1,048,136.20 × 428,350.64
  4. Step 4: Simplify right side
    759,520.88x = 448,969,812,077.17
  5. Step 5: Solve for x
    x = 448,969,812,077.17/759,520.88
  6. Step 6: Final answer
    x = 591,122.41

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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.