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Finding the Fourth Proportional to 603,320.40, 832,727.16 and 345,346.89

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Solution

The fourth proportional to 603,320.40, 832,727.16 and 345,346.89 is: 476,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,320.40 : 832,727.16 = 345,346.89 : x
  2. Step 2: Convert to fraction form
    603,320.40/832,727.16 = 345,346.89/x
  3. Step 3: Cross multiply
    603,320.40x = 832,727.16 × 345,346.89
  4. Step 4: Simplify right side
    603,320.40x = 287,579,734,924.53
  5. Step 5: Solve for x
    x = 287,579,734,924.53/603,320.40
  6. Step 6: Final answer
    x = 476,661.71

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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.