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Finding the Fourth Proportional to 885,116, 1,328,999.16 and 506,463.68

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Solution

The fourth proportional to 885,116, 1,328,999.16 and 506,463.68 is: 760,453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,116 : 1,328,999.16 = 506,463.68 : x
  2. Step 2: Convert to fraction form
    885,116/1,328,999.16 = 506,463.68/x
  3. Step 3: Cross multiply
    885,116x = 1,328,999.16 × 506,463.68
  4. Step 4: Simplify right side
    885,116x = 673,089,805,290.51
  5. Step 5: Solve for x
    x = 673,089,805,290.51/885,116
  6. Step 6: Final answer
    x = 760,453.78

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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.