Home / 902,142.39-1,353,213.07-842,355.28

Finding the Fourth Proportional to 902,142.39, 1,353,213.07 and 842,355.28

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Solution

The fourth proportional to 902,142.39, 1,353,213.07 and 842,355.28 is: 1,263,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,142.39 : 1,353,213.07 = 842,355.28 : x
  2. Step 2: Convert to fraction form
    902,142.39/1,353,213.07 = 842,355.28/x
  3. Step 3: Cross multiply
    902,142.39x = 1,353,213.07 × 842,355.28
  4. Step 4: Simplify right side
    902,142.39x = 1,139,886,174,065.14
  5. Step 5: Solve for x
    x = 1,139,886,174,065.14/902,142.39
  6. Step 6: Final answer
    x = 1,263,532.43

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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.