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Finding the Fourth Proportional to 603,618.63, 904,865.13 and 203,979.92

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Solution

The fourth proportional to 603,618.63, 904,865.13 and 203,979.92 is: 305,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,618.63 : 904,865.13 = 203,979.92 : x
  2. Step 2: Convert to fraction form
    603,618.63/904,865.13 = 203,979.92/x
  3. Step 3: Cross multiply
    603,618.63x = 904,865.13 × 203,979.92
  4. Step 4: Simplify right side
    603,618.63x = 184,574,312,303.86
  5. Step 5: Solve for x
    x = 184,574,312,303.86/603,618.63
  6. Step 6: Final answer
    x = 305,779.68

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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.