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Finding the Fourth Proportional to 655,405.48, 983,490.35 and 276,303.01

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Solution

The fourth proportional to 655,405.48, 983,490.35 and 276,303.01 is: 414,615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,405.48 : 983,490.35 = 276,303.01 : x
  2. Step 2: Convert to fraction form
    655,405.48/983,490.35 = 276,303.01/x
  3. Step 3: Cross multiply
    655,405.48x = 983,490.35 × 276,303.01
  4. Step 4: Simplify right side
    655,405.48x = 271,741,344,010.95
  5. Step 5: Solve for x
    x = 271,741,344,010.95/655,405.48
  6. Step 6: Final answer
    x = 414,615.61

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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.