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Finding the Fourth Proportional to 615,300.36, 848,877.75 and 385,457.64

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Solution

The fourth proportional to 615,300.36, 848,877.75 and 385,457.64 is: 531,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,300.36 : 848,877.75 = 385,457.64 : x
  2. Step 2: Convert to fraction form
    615,300.36/848,877.75 = 385,457.64/x
  3. Step 3: Cross multiply
    615,300.36x = 848,877.75 × 385,457.64
  4. Step 4: Simplify right side
    615,300.36x = 327,206,414,163.51
  5. Step 5: Solve for x
    x = 327,206,414,163.51/615,300.36
  6. Step 6: Final answer
    x = 531,783.23

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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.