Finding the Fourth Proportional to 1,206,340.32, 1,663,827.18 and 819,454.05
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Solution
The fourth proportional to 1,206,340.32, 1,663,827.18 and 819,454.05 is: 1,130,219.96
Step by Step Solution
- Step 1: Write the proportion equation
1,206,340.32 : 1,663,827.18 = 819,454.05 : x - Step 2: Convert to fraction form
1,206,340.32/1,663,827.18 = 819,454.05/x - Step 3: Cross multiply
1,206,340.32x = 1,663,827.18 × 819,454.05 - Step 4: Simplify right side
1,206,340.32x = 1,363,429,918,078.13 - Step 5: Solve for x
x = 1,363,429,918,078.13/1,206,340.32 - Step 6: Final answer
x = 1,130,219.96
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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.