Home / 520,115.04-717,748.56-290,674.44

Finding the Fourth Proportional to 520,115.04, 717,748.56 and 290,674.44

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Solution

The fourth proportional to 520,115.04, 717,748.56 and 290,674.44 is: 401,125.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,115.04 : 717,748.56 = 290,674.44 : x
  2. Step 2: Convert to fraction form
    520,115.04/717,748.56 = 290,674.44/x
  3. Step 3: Cross multiply
    520,115.04x = 717,748.56 × 290,674.44
  4. Step 4: Simplify right side
    520,115.04x = 208,631,160,738.81
  5. Step 5: Solve for x
    x = 208,631,160,738.81/520,115.04
  6. Step 6: Final answer
    x = 401,125.03

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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.