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Finding the Fourth Proportional to 602,716.53, 831,778.98 and 330,782.04

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Solution

The fourth proportional to 602,716.53, 831,778.98 and 330,782.04 is: 456,495.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,716.53 : 831,778.98 = 330,782.04 : x
  2. Step 2: Convert to fraction form
    602,716.53/831,778.98 = 330,782.04/x
  3. Step 3: Cross multiply
    602,716.53x = 831,778.98 × 330,782.04
  4. Step 4: Simplify right side
    602,716.53x = 275,137,547,762.78
  5. Step 5: Solve for x
    x = 275,137,547,762.78/602,716.53
  6. Step 6: Final answer
    x = 456,495.78

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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.