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Finding the Fourth Proportional to 510,258.08, 765,636.10 and 320,807.52

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Solution

The fourth proportional to 510,258.08, 765,636.10 and 320,807.52 is: 481,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,258.08 : 765,636.10 = 320,807.52 : x
  2. Step 2: Convert to fraction form
    510,258.08/765,636.10 = 320,807.52/x
  3. Step 3: Cross multiply
    510,258.08x = 765,636.10 × 320,807.52
  4. Step 4: Simplify right side
    510,258.08x = 245,621,817,661.45
  5. Step 5: Solve for x
    x = 245,621,817,661.45/510,258.08
  6. Step 6: Final answer
    x = 481,367.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.