Home / 1,258,357.52-1,886,789.70-499,790.90

Finding the Fourth Proportional to 1,258,357.52, 1,886,789.70 and 499,790.90

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Solution

The fourth proportional to 1,258,357.52, 1,886,789.70 and 499,790.90 is: 749,389.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,357.52 : 1,886,789.70 = 499,790.90 : x
  2. Step 2: Convert to fraction form
    1,258,357.52/1,886,789.70 = 499,790.90/x
  3. Step 3: Cross multiply
    1,258,357.52x = 1,886,789.70 × 499,790.90
  4. Step 4: Simplify right side
    1,258,357.52x = 943,000,322,273.73
  5. Step 5: Solve for x
    x = 943,000,322,273.73/1,258,357.52
  6. Step 6: Final answer
    x = 749,389.83

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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.