Finding the Fourth Proportional to 1,121,569.50, 1,547,772.39 and 612,277.14
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Solution
The fourth proportional to 1,121,569.50, 1,547,772.39 and 612,277.14 is: 844,945.99
Step by Step Solution
- Step 1: Write the proportion equation
1,121,569.50 : 1,547,772.39 = 612,277.14 : x - Step 2: Convert to fraction form
1,121,569.50/1,547,772.39 = 612,277.14/x - Step 3: Cross multiply
1,121,569.50x = 1,547,772.39 × 612,277.14 - Step 4: Simplify right side
1,121,569.50x = 947,665,652,320.17 - Step 5: Solve for x
x = 947,665,652,320.17/1,121,569.50 - Step 6: Final answer
x = 844,945.99
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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.