Home / 498,975.75-688,586.54-272,622.87

Finding the Fourth Proportional to 498,975.75, 688,586.54 and 272,622.87

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Solution

The fourth proportional to 498,975.75, 688,586.54 and 272,622.87 is: 376,219.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,975.75 : 688,586.54 = 272,622.87 : x
  2. Step 2: Convert to fraction form
    498,975.75/688,586.54 = 272,622.87/x
  3. Step 3: Cross multiply
    498,975.75x = 688,586.54 × 272,622.87
  4. Step 4: Simplify right side
    498,975.75x = 187,724,437,415.06
  5. Step 5: Solve for x
    x = 187,724,437,415.06/498,975.75
  6. Step 6: Final answer
    x = 376,219.56

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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.