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Finding the Fourth Proportional to 602,695.10, 831,716.80 and 330,767.47

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Solution

The fourth proportional to 602,695.10, 831,716.80 and 330,767.47 is: 456,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,695.10 : 831,716.80 = 330,767.47 : x
  2. Step 2: Convert to fraction form
    602,695.10/831,716.80 = 330,767.47/x
  3. Step 3: Cross multiply
    602,695.10x = 831,716.80 × 330,767.47
  4. Step 4: Simplify right side
    602,695.10x = 275,104,861,692.50
  5. Step 5: Solve for x
    x = 275,104,861,692.50/602,695.10
  6. Step 6: Final answer
    x = 456,457.77

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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.