Home / 948,508.28-1,308,972.74-518,788.43

Finding the Fourth Proportional to 948,508.28, 1,308,972.74 and 518,788.43

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Solution

The fourth proportional to 948,508.28, 1,308,972.74 and 518,788.43 is: 715,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,508.28 : 1,308,972.74 = 518,788.43 : x
  2. Step 2: Convert to fraction form
    948,508.28/1,308,972.74 = 518,788.43/x
  3. Step 3: Cross multiply
    948,508.28x = 1,308,972.74 × 518,788.43
  4. Step 4: Simplify right side
    948,508.28x = 679,079,903,558.59
  5. Step 5: Solve for x
    x = 679,079,903,558.59/948,508.28
  6. Step 6: Final answer
    x = 715,945.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.