Home / 520,022.70-717,622.38-290,583.72

Finding the Fourth Proportional to 520,022.70, 717,622.38 and 290,583.72

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Solution

The fourth proportional to 520,022.70, 717,622.38 and 290,583.72 is: 401,000.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,022.70 : 717,622.38 = 290,583.72 : x
  2. Step 2: Convert to fraction form
    520,022.70/717,622.38 = 290,583.72/x
  3. Step 3: Cross multiply
    520,022.70x = 717,622.38 × 290,583.72
  4. Step 4: Simplify right side
    520,022.70x = 208,529,380,735.65
  5. Step 5: Solve for x
    x = 208,529,380,735.65/520,022.70
  6. Step 6: Final answer
    x = 401,000.53

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1.5x scale

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.