Finding the Fourth Proportional to 1,211,439.08, 1,671,763.56 and 667,625.24
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Solution
The fourth proportional to 1,211,439.08, 1,671,763.56 and 667,625.24 is: 921,310.50
Step by Step Solution
- Step 1: Write the proportion equation
1,211,439.08 : 1,671,763.56 = 667,625.24 : x - Step 2: Convert to fraction form
1,211,439.08/1,671,763.56 = 667,625.24/x - Step 3: Cross multiply
1,211,439.08x = 1,671,763.56 × 667,625.24 - Step 4: Simplify right side
1,211,439.08x = 1,116,111,547,968.25 - Step 5: Solve for x
x = 1,116,111,547,968.25/1,211,439.08 - Step 6: Final answer
x = 921,310.50
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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.