Home / 1,186,222.36-1,778,965.53-427,965.26

Finding the Fourth Proportional to 1,186,222.36, 1,778,965.53 and 427,965.26

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Solution

The fourth proportional to 1,186,222.36, 1,778,965.53 and 427,965.26 is: 641,815.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,222.36 : 1,778,965.53 = 427,965.26 : x
  2. Step 2: Convert to fraction form
    1,186,222.36/1,778,965.53 = 427,965.26/x
  3. Step 3: Cross multiply
    1,186,222.36x = 1,778,965.53 × 427,965.26
  4. Step 4: Simplify right side
    1,186,222.36x = 761,335,437,485.10
  5. Step 5: Solve for x
    x = 761,335,437,485.10/1,186,222.36
  6. Step 6: Final answer
    x = 641,815.11

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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.