Home / 1,258,429.90-1,886,898.21-499,863.46

Finding the Fourth Proportional to 1,258,429.90, 1,886,898.21 and 499,863.46

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Solution

The fourth proportional to 1,258,429.90, 1,886,898.21 and 499,863.46 is: 749,498.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,429.90 : 1,886,898.21 = 499,863.46 : x
  2. Step 2: Convert to fraction form
    1,258,429.90/1,886,898.21 = 499,863.46/x
  3. Step 3: Cross multiply
    1,258,429.90x = 1,886,898.21 × 499,863.46
  4. Step 4: Simplify right side
    1,258,429.90x = 943,191,467,918.41
  5. Step 5: Solve for x
    x = 943,191,467,918.41/1,258,429.90
  6. Step 6: Final answer
    x = 749,498.62

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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.