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Finding the Fourth Proportional to 691,506, 954,278.46 and 373,554

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Solution

The fourth proportional to 691,506, 954,278.46 and 373,554 is: 515,504.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,506 : 954,278.46 = 373,554 : x
  2. Step 2: Convert to fraction form
    691,506/954,278.46 = 373,554/x
  3. Step 3: Cross multiply
    691,506x = 954,278.46 × 373,554
  4. Step 4: Simplify right side
    691,506x = 356,474,535,846.84
  5. Step 5: Solve for x
    x = 356,474,535,846.84/691,506
  6. Step 6: Final answer
    x = 515,504.62

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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.