Finding the Fourth Proportional to 917,395.15, 1,266,428.99 and 550,046.13
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Solution
The fourth proportional to 917,395.15, 1,266,428.99 and 550,046.13 is: 759,317.69
Step by Step Solution
- Step 1: Write the proportion equation
917,395.15 : 1,266,428.99 = 550,046.13 : x - Step 2: Convert to fraction form
917,395.15/1,266,428.99 = 550,046.13/x - Step 3: Cross multiply
917,395.15x = 1,266,428.99 × 550,046.13 - Step 4: Simplify right side
917,395.15x = 696,594,364,869.31 - Step 5: Solve for x
x = 696,594,364,869.31/917,395.15 - Step 6: Final answer
x = 759,317.69
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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.