Home / 724,619.20-1,086,928.80-558,731.20

Finding the Fourth Proportional to 724,619.20, 1,086,928.80 and 558,731.20

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Solution

The fourth proportional to 724,619.20, 1,086,928.80 and 558,731.20 is: 838,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,619.20 : 1,086,928.80 = 558,731.20 : x
  2. Step 2: Convert to fraction form
    724,619.20/1,086,928.80 = 558,731.20/x
  3. Step 3: Cross multiply
    724,619.20x = 1,086,928.80 × 558,731.20
  4. Step 4: Simplify right side
    724,619.20x = 607,301,032,738.56
  5. Step 5: Solve for x
    x = 607,301,032,738.56/724,619.20
  6. Step 6: Final answer
    x = 838,096.80

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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.