Finding the Fourth Proportional to 1,454,203.12, 2,006,280.80 and 842,021.68
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Solution
The fourth proportional to 1,454,203.12, 2,006,280.80 and 842,021.68 is: 1,161,689.11
Step by Step Solution
- Step 1: Write the proportion equation
1,454,203.12 : 2,006,280.80 = 842,021.68 : x - Step 2: Convert to fraction form
1,454,203.12/2,006,280.80 = 842,021.68/x - Step 3: Cross multiply
1,454,203.12x = 2,006,280.80 × 842,021.68 - Step 4: Simplify right side
1,454,203.12x = 1,689,331,929,767.74 - Step 5: Solve for x
x = 1,689,331,929,767.74/1,454,203.12 - Step 6: Final answer
x = 1,161,689.11
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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.