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Finding the Fourth Proportional to 385,893.24, 576,213.03 and 340,536.12

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Solution

The fourth proportional to 385,893.24, 576,213.03 and 340,536.12 is: 508,486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,893.24 : 576,213.03 = 340,536.12 : x
  2. Step 2: Convert to fraction form
    385,893.24/576,213.03 = 340,536.12/x
  3. Step 3: Cross multiply
    385,893.24x = 576,213.03 × 340,536.12
  4. Step 4: Simplify right side
    385,893.24x = 196,221,349,529.64
  5. Step 5: Solve for x
    x = 196,221,349,529.64/385,893.24
  6. Step 6: Final answer
    x = 508,486.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.