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Finding the Fourth Proportional to 602,249.13, 831,134.24 and 330,342.32

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Solution

The fourth proportional to 602,249.13, 831,134.24 and 330,342.32 is: 455,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,249.13 : 831,134.24 = 330,342.32 : x
  2. Step 2: Convert to fraction form
    602,249.13/831,134.24 = 330,342.32/x
  3. Step 3: Cross multiply
    602,249.13x = 831,134.24 × 330,342.32
  4. Step 4: Simplify right side
    602,249.13x = 274,558,813,073.04
  5. Step 5: Solve for x
    x = 274,558,813,073.04/602,249.13
  6. Step 6: Final answer
    x = 455,889.10

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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.