Finding the Fourth Proportional to 917,734.41, 1,376,628.74 and 438,012.75
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Solution
The fourth proportional to 917,734.41, 1,376,628.74 and 438,012.75 is: 657,032.07
Step by Step Solution
- Step 1: Write the proportion equation
917,734.41 : 1,376,628.74 = 438,012.75 : x - Step 2: Convert to fraction form
917,734.41/1,376,628.74 = 438,012.75/x - Step 3: Cross multiply
917,734.41x = 1,376,628.74 × 438,012.75 - Step 4: Simplify right side
917,734.41x = 602,980,940,136.44 - Step 5: Solve for x
x = 602,980,940,136.44/917,734.41 - Step 6: Final answer
x = 657,032.07
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.