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Finding the Fourth Proportional to 623.30, 933.42 and 603.86

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Solution

The fourth proportional to 623.30, 933.42 and 603.86 is: 904.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.30 : 933.42 = 603.86 : x
  2. Step 2: Convert to fraction form
    623.30/933.42 = 603.86/x
  3. Step 3: Cross multiply
    623.30x = 933.42 × 603.86
  4. Step 4: Simplify right side
    623.30x = 563,652.60
  5. Step 5: Solve for x
    x = 563,652.60/623.30
  6. Step 6: Final answer
    x = 904.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.