Home / 520,126.20-717,771.69-290,683.24

Finding the Fourth Proportional to 520,126.20, 717,771.69 and 290,683.24

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Solution

The fourth proportional to 520,126.20, 717,771.69 and 290,683.24 is: 401,141.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,126.20 : 717,771.69 = 290,683.24 : x
  2. Step 2: Convert to fraction form
    520,126.20/717,771.69 = 290,683.24/x
  3. Step 3: Cross multiply
    520,126.20x = 717,771.69 × 290,683.24
  4. Step 4: Simplify right side
    520,126.20x = 208,644,204,090.65
  5. Step 5: Solve for x
    x = 208,644,204,090.65/520,126.20
  6. Step 6: Final answer
    x = 401,141.50

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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.