Home / 1,258,456.50-1,887,629.90-405,509.07

Finding the Fourth Proportional to 1,258,456.50, 1,887,629.90 and 405,509.07

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Solution

The fourth proportional to 1,258,456.50, 1,887,629.90 and 405,509.07 is: 608,245.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,456.50 : 1,887,629.90 = 405,509.07 : x
  2. Step 2: Convert to fraction form
    1,258,456.50/1,887,629.90 = 405,509.07/x
  3. Step 3: Cross multiply
    1,258,456.50x = 1,887,629.90 × 405,509.07
  4. Step 4: Simplify right side
    1,258,456.50x = 765,451,045,253.19
  5. Step 5: Solve for x
    x = 765,451,045,253.19/1,258,456.50
  6. Step 6: Final answer
    x = 608,245.93

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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.