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Finding the Fourth Proportional to 613,496.28, 846,328.08 and 395,647.48

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Solution

The fourth proportional to 613,496.28, 846,328.08 and 395,647.48 is: 545,802.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,496.28 : 846,328.08 = 395,647.48 : x
  2. Step 2: Convert to fraction form
    613,496.28/846,328.08 = 395,647.48/x
  3. Step 3: Cross multiply
    613,496.28x = 846,328.08 × 395,647.48
  4. Step 4: Simplify right side
    613,496.28x = 334,847,572,105.24
  5. Step 5: Solve for x
    x = 334,847,572,105.24/613,496.28
  6. Step 6: Final answer
    x = 545,802.12

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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.