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Finding the Fourth Proportional to 688,903.94, 950,703.26 and 382,968.56

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Solution

The fourth proportional to 688,903.94, 950,703.26 and 382,968.56 is: 528,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,903.94 : 950,703.26 = 382,968.56 : x
  2. Step 2: Convert to fraction form
    688,903.94/950,703.26 = 382,968.56/x
  3. Step 3: Cross multiply
    688,903.94x = 950,703.26 × 382,968.56
  4. Step 4: Simplify right side
    688,903.94x = 364,089,451,801.15
  5. Step 5: Solve for x
    x = 364,089,451,801.15/688,903.94
  6. Step 6: Final answer
    x = 528,505.40

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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.