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Finding the Fourth Proportional to 655,774.58, 905,015.26 and 365,405.42

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Solution

The fourth proportional to 655,774.58, 905,015.26 and 365,405.42 is: 504,285.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,774.58 : 905,015.26 = 365,405.42 : x
  2. Step 2: Convert to fraction form
    655,774.58/905,015.26 = 365,405.42/x
  3. Step 3: Cross multiply
    655,774.58x = 905,015.26 × 365,405.42
  4. Step 4: Simplify right side
    655,774.58x = 330,697,481,186.71
  5. Step 5: Solve for x
    x = 330,697,481,186.71/655,774.58
  6. Step 6: Final answer
    x = 504,285.30

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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.