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Finding the Fourth Proportional to 1,318,355.03, 1,975,487.06 and 914,335.31

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Solution

The fourth proportional to 1,318,355.03, 1,975,487.06 and 914,335.31 is: 1,370,084.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,355.03 : 1,975,487.06 = 914,335.31 : x
  2. Step 2: Convert to fraction form
    1,318,355.03/1,975,487.06 = 914,335.31/x
  3. Step 3: Cross multiply
    1,318,355.03x = 1,975,487.06 × 914,335.31
  4. Step 4: Simplify right side
    1,318,355.03x = 1,806,257,558,956.98
  5. Step 5: Solve for x
    x = 1,806,257,558,956.98/1,318,355.03
  6. Step 6: Final answer
    x = 1,370,084.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.