Finding the Fourth Proportional to 1,205,263.04, 1,663,310.95 and 661,418.29
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Solution
The fourth proportional to 1,205,263.04, 1,663,310.95 and 661,418.29 is: 912,783.56
Step by Step Solution
- Step 1: Write the proportion equation
1,205,263.04 : 1,663,310.95 = 661,418.29 : x - Step 2: Convert to fraction form
1,205,263.04/1,663,310.95 = 661,418.29/x - Step 3: Cross multiply
1,205,263.04x = 1,663,310.95 × 661,418.29 - Step 4: Simplify right side
1,205,263.04x = 1,100,144,280,980.18 - Step 5: Solve for x
x = 1,100,144,280,980.18/1,205,263.04 - Step 6: Final answer
x = 912,783.56
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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.