Home / 919,686.53-1,379,737.40-280,047.46

Finding the Fourth Proportional to 919,686.53, 1,379,737.40 and 280,047.46

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Solution

The fourth proportional to 919,686.53, 1,379,737.40 and 280,047.46 is: 420,134.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,686.53 : 1,379,737.40 = 280,047.46 : x
  2. Step 2: Convert to fraction form
    919,686.53/1,379,737.40 = 280,047.46/x
  3. Step 3: Cross multiply
    919,686.53x = 1,379,737.40 × 280,047.46
  4. Step 4: Simplify right side
    919,686.53x = 386,391,954,337.00
  5. Step 5: Solve for x
    x = 386,391,954,337.00/919,686.53
  6. Step 6: Final answer
    x = 420,134.41

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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.