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Finding the Fourth Proportional to 655,824.69, 905,014.18 and 365,421.25

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Solution

The fourth proportional to 655,824.69, 905,014.18 and 365,421.25 is: 504,268.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,824.69 : 905,014.18 = 365,421.25 : x
  2. Step 2: Convert to fraction form
    655,824.69/905,014.18 = 365,421.25/x
  3. Step 3: Cross multiply
    655,824.69x = 905,014.18 × 365,421.25
  4. Step 4: Simplify right side
    655,824.69x = 330,711,410,424.40
  5. Step 5: Solve for x
    x = 330,711,410,424.40/655,824.69
  6. Step 6: Final answer
    x = 504,268.01

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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.