Home / 870,925.80-1,306,388.79-271,938.27

Finding the Fourth Proportional to 870,925.80, 1,306,388.79 and 271,938.27

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Solution

The fourth proportional to 870,925.80, 1,306,388.79 and 271,938.27 is: 407,907.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,925.80 : 1,306,388.79 = 271,938.27 : x
  2. Step 2: Convert to fraction form
    870,925.80/1,306,388.79 = 271,938.27/x
  3. Step 3: Cross multiply
    870,925.80x = 1,306,388.79 × 271,938.27
  4. Step 4: Simplify right side
    870,925.80x = 355,257,107,499.99
  5. Step 5: Solve for x
    x = 355,257,107,499.99/870,925.80
  6. Step 6: Final answer
    x = 407,907.43

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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.