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Finding the Fourth Proportional to 868,217, 1,308,241.27 and 713,902.12

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Solution

The fourth proportional to 868,217, 1,308,241.27 and 713,902.12 is: 1,075,717.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,217 : 1,308,241.27 = 713,902.12 : x
  2. Step 2: Convert to fraction form
    868,217/1,308,241.27 = 713,902.12/x
  3. Step 3: Cross multiply
    868,217x = 1,308,241.27 × 713,902.12
  4. Step 4: Simplify right side
    868,217x = 933,956,216,124.49
  5. Step 5: Solve for x
    x = 933,956,216,124.49/868,217
  6. Step 6: Final answer
    x = 1,075,717.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.