Home / 1,259,785.60-1,889,937.60-418,940.80

Finding the Fourth Proportional to 1,259,785.60, 1,889,937.60 and 418,940.80

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Solution

The fourth proportional to 1,259,785.60, 1,889,937.60 and 418,940.80 is: 628,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,785.60 : 1,889,937.60 = 418,940.80 : x
  2. Step 2: Convert to fraction form
    1,259,785.60/1,889,937.60 = 418,940.80/x
  3. Step 3: Cross multiply
    1,259,785.60x = 1,889,937.60 × 418,940.80
  4. Step 4: Simplify right side
    1,259,785.60x = 791,771,970,094.08
  5. Step 5: Solve for x
    x = 791,771,970,094.08/1,259,785.60
  6. Step 6: Final answer
    x = 628,497.40

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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.