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Finding the Fourth Proportional to 602,308.25, 831,186.51 and 330,378.35

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Solution

The fourth proportional to 602,308.25, 831,186.51 and 330,378.35 is: 455,922.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,308.25 : 831,186.51 = 330,378.35 : x
  2. Step 2: Convert to fraction form
    602,308.25/831,186.51 = 330,378.35/x
  3. Step 3: Cross multiply
    602,308.25x = 831,186.51 × 330,378.35
  4. Step 4: Simplify right side
    602,308.25x = 274,606,024,179.59
  5. Step 5: Solve for x
    x = 274,606,024,179.59/602,308.25
  6. Step 6: Final answer
    x = 455,922.73

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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.