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Finding the Fourth Proportional to 529,320.32, 730,494.72 and 302,960.64

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Solution

The fourth proportional to 529,320.32, 730,494.72 and 302,960.64 is: 418,104.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,320.32 : 730,494.72 = 302,960.64 : x
  2. Step 2: Convert to fraction form
    529,320.32/730,494.72 = 302,960.64/x
  3. Step 3: Cross multiply
    529,320.32x = 730,494.72 × 302,960.64
  4. Step 4: Simplify right side
    529,320.32x = 221,311,147,887.82
  5. Step 5: Solve for x
    x = 221,311,147,887.82/529,320.32
  6. Step 6: Final answer
    x = 418,104.39

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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.