Home / 685,737.60-1,028,606.40-187,101.60

Finding the Fourth Proportional to 685,737.60, 1,028,606.40 and 187,101.60

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Solution

The fourth proportional to 685,737.60, 1,028,606.40 and 187,101.60 is: 280,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,737.60 : 1,028,606.40 = 187,101.60 : x
  2. Step 2: Convert to fraction form
    685,737.60/1,028,606.40 = 187,101.60/x
  3. Step 3: Cross multiply
    685,737.60x = 1,028,606.40 × 187,101.60
  4. Step 4: Simplify right side
    685,737.60x = 192,453,903,210.24
  5. Step 5: Solve for x
    x = 192,453,903,210.24/685,737.60
  6. Step 6: Final answer
    x = 280,652.40

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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.