Home / 870,624.20-1,305,148.92-309,527.48

Finding the Fourth Proportional to 870,624.20, 1,305,148.92 and 309,527.48

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Solution

The fourth proportional to 870,624.20, 1,305,148.92 and 309,527.48 is: 464,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,624.20 : 1,305,148.92 = 309,527.48 : x
  2. Step 2: Convert to fraction form
    870,624.20/1,305,148.92 = 309,527.48/x
  3. Step 3: Cross multiply
    870,624.20x = 1,305,148.92 × 309,527.48
  4. Step 4: Simplify right side
    870,624.20x = 403,979,456,232.32
  5. Step 5: Solve for x
    x = 403,979,456,232.32/870,624.20
  6. Step 6: Final answer
    x = 464,011.29

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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.