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Finding the Fourth Proportional to 536,270.91, 740,105.25 and 306,782.63

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Solution

The fourth proportional to 536,270.91, 740,105.25 and 306,782.63 is: 423,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,270.91 : 740,105.25 = 306,782.63 : x
  2. Step 2: Convert to fraction form
    536,270.91/740,105.25 = 306,782.63/x
  3. Step 3: Cross multiply
    536,270.91x = 740,105.25 × 306,782.63
  4. Step 4: Simplify right side
    536,270.91x = 227,051,431,371.28
  5. Step 5: Solve for x
    x = 227,051,431,371.28/536,270.91
  6. Step 6: Final answer
    x = 423,389.42

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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.