Home / 2,661,127.60-3,990,816.60-978,012.40

Finding the Fourth Proportional to 2,661,127.60, 3,990,816.60 and 978,012.40

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Solution

The fourth proportional to 2,661,127.60, 3,990,816.60 and 978,012.40 is: 1,466,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,127.60 : 3,990,816.60 = 978,012.40 : x
  2. Step 2: Convert to fraction form
    2,661,127.60/3,990,816.60 = 978,012.40/x
  3. Step 3: Cross multiply
    2,661,127.60x = 3,990,816.60 × 978,012.40
  4. Step 4: Simplify right side
    2,661,127.60x = 3,903,068,120,925.84
  5. Step 5: Solve for x
    x = 3,903,068,120,925.84/2,661,127.60
  6. Step 6: Final answer
    x = 1,466,697.10

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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.