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Finding the Fourth Proportional to 655,559.98, 904,672.52 and 383,679.64

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Solution

The fourth proportional to 655,559.98, 904,672.52 and 383,679.64 is: 529,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,559.98 : 904,672.52 = 383,679.64 : x
  2. Step 2: Convert to fraction form
    655,559.98/904,672.52 = 383,679.64/x
  3. Step 3: Cross multiply
    655,559.98x = 904,672.52 × 383,679.64
  4. Step 4: Simplify right side
    655,559.98x = 347,104,420,349.73
  5. Step 5: Solve for x
    x = 347,104,420,349.73/655,559.98
  6. Step 6: Final answer
    x = 529,477.75

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1.5x scale

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.