Home / 982,606.40-1,356,529.08-689,157.31

Finding the Fourth Proportional to 982,606.40, 1,356,529.08 and 689,157.31

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Solution

The fourth proportional to 982,606.40, 1,356,529.08 and 689,157.31 is: 951,410.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,606.40 : 1,356,529.08 = 689,157.31 : x
  2. Step 2: Convert to fraction form
    982,606.40/1,356,529.08 = 689,157.31/x
  3. Step 3: Cross multiply
    982,606.40x = 1,356,529.08 × 689,157.31
  4. Step 4: Simplify right side
    982,606.40x = 934,861,928,318.25
  5. Step 5: Solve for x
    x = 934,861,928,318.25/982,606.40
  6. Step 6: Final answer
    x = 951,410.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.