Finding the Fourth Proportional to 909,409.98, 1,254,958.74 and 501,511.80
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Solution
The fourth proportional to 909,409.98, 1,254,958.74 and 501,511.80 is: 692,071.38
Step by Step Solution
- Step 1: Write the proportion equation
909,409.98 : 1,254,958.74 = 501,511.80 : x - Step 2: Convert to fraction form
909,409.98/1,254,958.74 = 501,511.80/x - Step 3: Cross multiply
909,409.98x = 1,254,958.74 × 501,511.80 - Step 4: Simplify right side
909,409.98x = 629,376,616,623.13 - Step 5: Solve for x
x = 629,376,616,623.13/909,409.98 - Step 6: Final answer
x = 692,071.38
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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.