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Finding the Fourth Proportional to 651,072.03, 978,104.77 and 459,387.63

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Solution

The fourth proportional to 651,072.03, 978,104.77 and 459,387.63 is: 690,137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,072.03 : 978,104.77 = 459,387.63 : x
  2. Step 2: Convert to fraction form
    651,072.03/978,104.77 = 459,387.63/x
  3. Step 3: Cross multiply
    651,072.03x = 978,104.77 × 459,387.63
  4. Step 4: Simplify right side
    651,072.03x = 449,329,232,182.00
  5. Step 5: Solve for x
    x = 449,329,232,182.00/651,072.03
  6. Step 6: Final answer
    x = 690,137.51

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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.