Home / 648,725.20-973,329.72-396,523.60

Finding the Fourth Proportional to 648,725.20, 973,329.72 and 396,523.60

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Solution

The fourth proportional to 648,725.20, 973,329.72 and 396,523.60 is: 594,933.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,725.20 : 973,329.72 = 396,523.60 : x
  2. Step 2: Convert to fraction form
    648,725.20/973,329.72 = 396,523.60/x
  3. Step 3: Cross multiply
    648,725.20x = 973,329.72 × 396,523.60
  4. Step 4: Simplify right side
    648,725.20x = 385,948,204,561.39
  5. Step 5: Solve for x
    x = 385,948,204,561.39/648,725.20
  6. Step 6: Final answer
    x = 594,933.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.