Home / 1,428,084.16-2,140,631.60-481,127.68

Finding the Fourth Proportional to 1,428,084.16, 2,140,631.60 and 481,127.68

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Solution

The fourth proportional to 1,428,084.16, 2,140,631.60 and 481,127.68 is: 721,187.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,084.16 : 2,140,631.60 = 481,127.68 : x
  2. Step 2: Convert to fraction form
    1,428,084.16/2,140,631.60 = 481,127.68/x
  3. Step 3: Cross multiply
    1,428,084.16x = 2,140,631.60 × 481,127.68
  4. Step 4: Simplify right side
    1,428,084.16x = 1,029,917,115,442.69
  5. Step 5: Solve for x
    x = 1,029,917,115,442.69/1,428,084.16
  6. Step 6: Final answer
    x = 721,187.97

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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.