Home / 1,008,081.20-1,512,121.80-927,599.60

Finding the Fourth Proportional to 1,008,081.20, 1,512,121.80 and 927,599.60

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Solution

The fourth proportional to 1,008,081.20, 1,512,121.80 and 927,599.60 is: 1,391,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,081.20 : 1,512,121.80 = 927,599.60 : x
  2. Step 2: Convert to fraction form
    1,008,081.20/1,512,121.80 = 927,599.60/x
  3. Step 3: Cross multiply
    1,008,081.20x = 1,512,121.80 × 927,599.60
  4. Step 4: Simplify right side
    1,008,081.20x = 1,402,643,576,831.28
  5. Step 5: Solve for x
    x = 1,402,643,576,831.28/1,008,081.20
  6. Step 6: Final answer
    x = 1,391,399.40

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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.