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Finding the Fourth Proportional to 520,018.33, 717,696.59 and 299,251.08

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Solution

The fourth proportional to 520,018.33, 717,696.59 and 299,251.08 is: 413,007.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,018.33 : 717,696.59 = 299,251.08 : x
  2. Step 2: Convert to fraction form
    520,018.33/717,696.59 = 299,251.08/x
  3. Step 3: Cross multiply
    520,018.33x = 717,696.59 × 299,251.08
  4. Step 4: Simplify right side
    520,018.33x = 214,771,478,173.56
  5. Step 5: Solve for x
    x = 214,771,478,173.56/520,018.33
  6. Step 6: Final answer
    x = 413,007.52

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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.