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Finding the Fourth Proportional to 835,740, 1,254,108.12 and 303,302.64

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Solution

The fourth proportional to 835,740, 1,254,108.12 and 303,302.64 is: 455,134.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,740 : 1,254,108.12 = 303,302.64 : x
  2. Step 2: Convert to fraction form
    835,740/1,254,108.12 = 303,302.64/x
  3. Step 3: Cross multiply
    835,740x = 1,254,108.12 × 303,302.64
  4. Step 4: Simplify right side
    835,740x = 380,374,303,641.44
  5. Step 5: Solve for x
    x = 380,374,303,641.44/835,740
  6. Step 6: Final answer
    x = 455,134.74

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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.