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Finding the Fourth Proportional to 655,264.64, 982,495.55 and 255,438.32

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Solution

The fourth proportional to 655,264.64, 982,495.55 and 255,438.32 is: 383,000.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,264.64 : 982,495.55 = 255,438.32 : x
  2. Step 2: Convert to fraction form
    655,264.64/982,495.55 = 255,438.32/x
  3. Step 3: Cross multiply
    655,264.64x = 982,495.55 × 255,438.32
  4. Step 4: Simplify right side
    655,264.64x = 250,967,006,509.81
  5. Step 5: Solve for x
    x = 250,967,006,509.81/655,264.64
  6. Step 6: Final answer
    x = 383,000.99

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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.