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Finding the Fourth Proportional to 860,529.96, 1,188,062.64 and 554,715

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Solution

The fourth proportional to 860,529.96, 1,188,062.64 and 554,715 is: 765,849.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,529.96 : 1,188,062.64 = 554,715 : x
  2. Step 2: Convert to fraction form
    860,529.96/1,188,062.64 = 554,715/x
  3. Step 3: Cross multiply
    860,529.96x = 1,188,062.64 × 554,715
  4. Step 4: Simplify right side
    860,529.96x = 659,036,167,347.60
  5. Step 5: Solve for x
    x = 659,036,167,347.60/860,529.96
  6. Step 6: Final answer
    x = 765,849.18

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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.