Finding the Fourth Proportional to 1,121,873.25, 1,547,399.39 and 759,137.43
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Solution
The fourth proportional to 1,121,873.25, 1,547,399.39 and 759,137.43 is: 1,047,077.99
Step by Step Solution
- Step 1: Write the proportion equation
1,121,873.25 : 1,547,399.39 = 759,137.43 : x - Step 2: Convert to fraction form
1,121,873.25/1,547,399.39 = 759,137.43/x - Step 3: Cross multiply
1,121,873.25x = 1,547,399.39 × 759,137.43 - Step 4: Simplify right side
1,121,873.25x = 1,174,688,792,312.48 - Step 5: Solve for x
x = 1,174,688,792,312.48/1,121,873.25 - Step 6: Final answer
x = 1,047,077.99
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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.