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Finding the Fourth Proportional to 567,415.99, 783,039.36 and 312,776.29

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Solution

The fourth proportional to 567,415.99, 783,039.36 and 312,776.29 is: 431,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,415.99 : 783,039.36 = 312,776.29 : x
  2. Step 2: Convert to fraction form
    567,415.99/783,039.36 = 312,776.29/x
  3. Step 3: Cross multiply
    567,415.99x = 783,039.36 × 312,776.29
  4. Step 4: Simplify right side
    567,415.99x = 244,916,145,944.77
  5. Step 5: Solve for x
    x = 244,916,145,944.77/567,415.99
  6. Step 6: Final answer
    x = 431,634.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.