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Finding the Fourth Proportional to 674,706.94, 1,009,713.03 and 418,419.70

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Solution

The fourth proportional to 674,706.94, 1,009,713.03 and 418,419.70 is: 626,173.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,706.94 : 1,009,713.03 = 418,419.70 : x
  2. Step 2: Convert to fraction form
    674,706.94/1,009,713.03 = 418,419.70/x
  3. Step 3: Cross multiply
    674,706.94x = 1,009,713.03 × 418,419.70
  4. Step 4: Simplify right side
    674,706.94x = 422,483,823,098.69
  5. Step 5: Solve for x
    x = 422,483,823,098.69/674,706.94
  6. Step 6: Final answer
    x = 626,173.82

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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.