Home / 948,333.57-1,308,819.88-621,921.08

Finding the Fourth Proportional to 948,333.57, 1,308,819.88 and 621,921.08

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Solution

The fourth proportional to 948,333.57, 1,308,819.88 and 621,921.08 is: 858,329.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,333.57 : 1,308,819.88 = 621,921.08 : x
  2. Step 2: Convert to fraction form
    948,333.57/1,308,819.88 = 621,921.08/x
  3. Step 3: Cross multiply
    948,333.57x = 1,308,819.88 × 621,921.08
  4. Step 4: Simplify right side
    948,333.57x = 813,982,678,049.41
  5. Step 5: Solve for x
    x = 813,982,678,049.41/948,333.57
  6. Step 6: Final answer
    x = 858,329.50

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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.