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Finding the Fourth Proportional to 603,281.55, 905,505.53 and 304,099.95

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Solution

The fourth proportional to 603,281.55, 905,505.53 and 304,099.95 is: 456,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,281.55 : 905,505.53 = 304,099.95 : x
  2. Step 2: Convert to fraction form
    603,281.55/905,505.53 = 304,099.95/x
  3. Step 3: Cross multiply
    603,281.55x = 905,505.53 × 304,099.95
  4. Step 4: Simplify right side
    603,281.55x = 275,364,184,877.22
  5. Step 5: Solve for x
    x = 275,364,184,877.22/603,281.55
  6. Step 6: Final answer
    x = 456,443.90

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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.