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Finding the Fourth Proportional to 655,406.48, 983,491.85 and 276,304.01

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Solution

The fourth proportional to 655,406.48, 983,491.85 and 276,304.01 is: 414,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,406.48 : 983,491.85 = 276,304.01 : x
  2. Step 2: Convert to fraction form
    655,406.48/983,491.85 = 276,304.01/x
  3. Step 3: Cross multiply
    655,406.48x = 983,491.85 × 276,304.01
  4. Step 4: Simplify right side
    655,406.48x = 271,742,741,957.32
  5. Step 5: Solve for x
    x = 271,742,741,957.32/655,406.48
  6. Step 6: Final answer
    x = 414,617.11

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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.