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Finding the Fourth Proportional to 994,784.40, 1,489,001.40 and 784,832.40

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Solution

The fourth proportional to 994,784.40, 1,489,001.40 and 784,832.40 is: 1,174,743.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,784.40 : 1,489,001.40 = 784,832.40 : x
  2. Step 2: Convert to fraction form
    994,784.40/1,489,001.40 = 784,832.40/x
  3. Step 3: Cross multiply
    994,784.40x = 1,489,001.40 × 784,832.40
  4. Step 4: Simplify right side
    994,784.40x = 1,168,616,542,365.36
  5. Step 5: Solve for x
    x = 1,168,616,542,365.36/994,784.40
  6. Step 6: Final answer
    x = 1,174,743.53

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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.