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Finding the Fourth Proportional to 603,303.65, 832,616.85 and 345,129.32

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Solution

The fourth proportional to 603,303.65, 832,616.85 and 345,129.32 is: 476,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,303.65 : 832,616.85 = 345,129.32 : x
  2. Step 2: Convert to fraction form
    603,303.65/832,616.85 = 345,129.32/x
  3. Step 3: Cross multiply
    603,303.65x = 832,616.85 × 345,129.32
  4. Step 4: Simplify right side
    603,303.65x = 287,360,488,695.47
  5. Step 5: Solve for x
    x = 287,360,488,695.47/603,303.65
  6. Step 6: Final answer
    x = 476,311.54

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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.