Finding the Fourth Proportional to 1,211,115.84, 1,671,340.80 and 702,113.28
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Solution
The fourth proportional to 1,211,115.84, 1,671,340.80 and 702,113.28 is: 968,916.87
Step by Step Solution
- Step 1: Write the proportion equation
1,211,115.84 : 1,671,340.80 = 702,113.28 : x - Step 2: Convert to fraction form
1,211,115.84/1,671,340.80 = 702,113.28/x - Step 3: Cross multiply
1,211,115.84x = 1,671,340.80 × 702,113.28 - Step 4: Simplify right side
1,211,115.84x = 1,173,470,571,085.82 - Step 5: Solve for x
x = 1,173,470,571,085.82/1,211,115.84 - Step 6: Final answer
x = 968,916.87
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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.