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Finding the Fourth Proportional to 707,039.55, 975,735.09 and 384,770.43

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Solution

The fourth proportional to 707,039.55, 975,735.09 and 384,770.43 is: 530,994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,039.55 : 975,735.09 = 384,770.43 : x
  2. Step 2: Convert to fraction form
    707,039.55/975,735.09 = 384,770.43/x
  3. Step 3: Cross multiply
    707,039.55x = 975,735.09 × 384,770.43
  4. Step 4: Simplify right side
    707,039.55x = 375,434,010,145.39
  5. Step 5: Solve for x
    x = 375,434,010,145.39/707,039.55
  6. Step 6: Final answer
    x = 530,994.36

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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.