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Finding the Fourth Proportional to 602,406.79, 831,317.99 and 330,467.72

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Solution

The fourth proportional to 602,406.79, 831,317.99 and 330,467.72 is: 456,043.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,406.79 : 831,317.99 = 330,467.72 : x
  2. Step 2: Convert to fraction form
    602,406.79/831,317.99 = 330,467.72/x
  3. Step 3: Cross multiply
    602,406.79x = 831,317.99 × 330,467.72
  4. Step 4: Simplify right side
    602,406.79x = 274,723,754,941.35
  5. Step 5: Solve for x
    x = 274,723,754,941.35/602,406.79
  6. Step 6: Final answer
    x = 456,043.59

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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.