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Finding the Fourth Proportional to 653,715.81, 978,464.48 and 337,738.05

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Solution

The fourth proportional to 653,715.81, 978,464.48 and 337,738.05 is: 505,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,715.81 : 978,464.48 = 337,738.05 : x
  2. Step 2: Convert to fraction form
    653,715.81/978,464.48 = 337,738.05/x
  3. Step 3: Cross multiply
    653,715.81x = 978,464.48 × 337,738.05
  4. Step 4: Simplify right side
    653,715.81x = 330,464,683,780.77
  5. Step 5: Solve for x
    x = 330,464,683,780.77/653,715.81
  6. Step 6: Final answer
    x = 505,517.35

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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.