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Finding the Fourth Proportional to 602,601.90, 831,643.20 and 330,722.25

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Solution

The fourth proportional to 602,601.90, 831,643.20 and 330,722.25 is: 456,425.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,601.90 : 831,643.20 = 330,722.25 : x
  2. Step 2: Convert to fraction form
    602,601.90/831,643.20 = 330,722.25/x
  3. Step 3: Cross multiply
    602,601.90x = 831,643.20 × 330,722.25
  4. Step 4: Simplify right side
    602,601.90x = 275,042,910,301.20
  5. Step 5: Solve for x
    x = 275,042,910,301.20/602,601.90
  6. Step 6: Final answer
    x = 456,425.56

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1.5x scale

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.