Home / 899,329.20-1,349,659.20-426,015.60

Finding the Fourth Proportional to 899,329.20, 1,349,659.20 and 426,015.60

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Solution

The fourth proportional to 899,329.20, 1,349,659.20 and 426,015.60 is: 639,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,329.20 : 1,349,659.20 = 426,015.60 : x
  2. Step 2: Convert to fraction form
    899,329.20/1,349,659.20 = 426,015.60/x
  3. Step 3: Cross multiply
    899,329.20x = 1,349,659.20 × 426,015.60
  4. Step 4: Simplify right side
    899,329.20x = 574,975,873,883.52
  5. Step 5: Solve for x
    x = 574,975,873,883.52/899,329.20
  6. Step 6: Final answer
    x = 639,338.60

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Double scale
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Similar ratio
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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.