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Finding the Fourth Proportional to 655,374.20, 983,443.38 and 276,271.70

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Solution

The fourth proportional to 655,374.20, 983,443.38 and 276,271.70 is: 414,568.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,374.20 : 983,443.38 = 276,271.70 : x
  2. Step 2: Convert to fraction form
    655,374.20/983,443.38 = 276,271.70/x
  3. Step 3: Cross multiply
    655,374.20x = 983,443.38 × 276,271.70
  4. Step 4: Simplify right side
    655,374.20x = 271,697,574,446.35
  5. Step 5: Solve for x
    x = 271,697,574,446.35/655,374.20
  6. Step 6: Final answer
    x = 414,568.62

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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.