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Finding the Fourth Proportional to 603,003.05, 832,145.88 and 331,088.56

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Solution

The fourth proportional to 603,003.05, 832,145.88 and 331,088.56 is: 456,903.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,003.05 : 832,145.88 = 331,088.56 : x
  2. Step 2: Convert to fraction form
    603,003.05/832,145.88 = 331,088.56/x
  3. Step 3: Cross multiply
    603,003.05x = 832,145.88 × 331,088.56
  4. Step 4: Simplify right side
    603,003.05x = 275,513,979,038.77
  5. Step 5: Solve for x
    x = 275,513,979,038.77/603,003.05
  6. Step 6: Final answer
    x = 456,903.13

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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.