Home / 1,325,152.40-1,987,728.60-899,999.60

Finding the Fourth Proportional to 1,325,152.40, 1,987,728.60 and 899,999.60

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Solution

The fourth proportional to 1,325,152.40, 1,987,728.60 and 899,999.60 is: 1,349,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,152.40 : 1,987,728.60 = 899,999.60 : x
  2. Step 2: Convert to fraction form
    1,325,152.40/1,987,728.60 = 899,999.60/x
  3. Step 3: Cross multiply
    1,325,152.40x = 1,987,728.60 × 899,999.60
  4. Step 4: Simplify right side
    1,325,152.40x = 1,788,954,944,908.56
  5. Step 5: Solve for x
    x = 1,788,954,944,908.56/1,325,152.40
  6. Step 6: Final answer
    x = 1,349,999.40

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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.