Home / 870,439.74-1,305,383.13-279,325.50

Finding the Fourth Proportional to 870,439.74, 1,305,383.13 and 279,325.50

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Solution

The fourth proportional to 870,439.74, 1,305,383.13 and 279,325.50 is: 418,899.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,439.74 : 1,305,383.13 = 279,325.50 : x
  2. Step 2: Convert to fraction form
    870,439.74/1,305,383.13 = 279,325.50/x
  3. Step 3: Cross multiply
    870,439.74x = 1,305,383.13 × 279,325.50
  4. Step 4: Simplify right side
    870,439.74x = 364,626,795,478.82
  5. Step 5: Solve for x
    x = 364,626,795,478.82/870,439.74
  6. Step 6: Final answer
    x = 418,899.53

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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.