Home / 724,296.70-1,086,439.65-218,856.70

Finding the Fourth Proportional to 724,296.70, 1,086,439.65 and 218,856.70

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Solution

The fourth proportional to 724,296.70, 1,086,439.65 and 218,856.70 is: 328,283.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,296.70 : 1,086,439.65 = 218,856.70 : x
  2. Step 2: Convert to fraction form
    724,296.70/1,086,439.65 = 218,856.70/x
  3. Step 3: Cross multiply
    724,296.70x = 1,086,439.65 × 218,856.70
  4. Step 4: Simplify right side
    724,296.70x = 237,774,596,548.16
  5. Step 5: Solve for x
    x = 237,774,596,548.16/724,296.70
  6. Step 6: Final answer
    x = 328,283.42

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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.