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Finding the Fourth Proportional to 1,080,747.36, 1,620,784.08 and 406,922.40

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Solution

The fourth proportional to 1,080,747.36, 1,620,784.08 and 406,922.40 is: 610,256.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,747.36 : 1,620,784.08 = 406,922.40 : x
  2. Step 2: Convert to fraction form
    1,080,747.36/1,620,784.08 = 406,922.40/x
  3. Step 3: Cross multiply
    1,080,747.36x = 1,620,784.08 × 406,922.40
  4. Step 4: Simplify right side
    1,080,747.36x = 659,533,347,715.39
  5. Step 5: Solve for x
    x = 659,533,347,715.39/1,080,747.36
  6. Step 6: Final answer
    x = 610,256.73

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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.