Finding the Fourth Proportional to 914,309.09, 1,261,691.07 and 506,386.51
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Solution
The fourth proportional to 914,309.09, 1,261,691.07 and 506,386.51 is: 698,782.66
Step by Step Solution
- Step 1: Write the proportion equation
914,309.09 : 1,261,691.07 = 506,386.51 : x - Step 2: Convert to fraction form
914,309.09/1,261,691.07 = 506,386.51/x - Step 3: Cross multiply
914,309.09x = 1,261,691.07 × 506,386.51 - Step 4: Simplify right side
914,309.09x = 638,903,334,481.24 - Step 5: Solve for x
x = 638,903,334,481.24/914,309.09 - Step 6: Final answer
x = 698,782.66
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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.