Home / 1,102,090.05-1,653,765.81-428,084.16

Finding the Fourth Proportional to 1,102,090.05, 1,653,765.81 and 428,084.16

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Solution

The fourth proportional to 1,102,090.05, 1,653,765.81 and 428,084.16 is: 642,371.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,090.05 : 1,653,765.81 = 428,084.16 : x
  2. Step 2: Convert to fraction form
    1,102,090.05/1,653,765.81 = 428,084.16/x
  3. Step 3: Cross multiply
    1,102,090.05x = 1,653,765.81 × 428,084.16
  4. Step 4: Simplify right side
    1,102,090.05x = 707,950,947,610.57
  5. Step 5: Solve for x
    x = 707,950,947,610.57/1,102,090.05
  6. Step 6: Final answer
    x = 642,371.24

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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.