Home / 1,258,455.50-1,887,628.40-405,508.07

Finding the Fourth Proportional to 1,258,455.50, 1,887,628.40 and 405,508.07

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Solution

The fourth proportional to 1,258,455.50, 1,887,628.40 and 405,508.07 is: 608,244.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,455.50 : 1,887,628.40 = 405,508.07 : x
  2. Step 2: Convert to fraction form
    1,258,455.50/1,887,628.40 = 405,508.07/x
  3. Step 3: Cross multiply
    1,258,455.50x = 1,887,628.40 × 405,508.07
  4. Step 4: Simplify right side
    1,258,455.50x = 765,448,555,854.36
  5. Step 5: Solve for x
    x = 765,448,555,854.36/1,258,455.50
  6. Step 6: Final answer
    x = 608,244.44

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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.