Finding the Fourth Proportional to 1,790,703.84, 2,470,417.20 and 1,186,042.08
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Solution
The fourth proportional to 1,790,703.84, 2,470,417.20 and 1,186,042.08 is: 1,636,238.61
Step by Step Solution
- Step 1: Write the proportion equation
1,790,703.84 : 2,470,417.20 = 1,186,042.08 : x - Step 2: Convert to fraction form
1,790,703.84/2,470,417.20 = 1,186,042.08/x - Step 3: Cross multiply
1,790,703.84x = 2,470,417.20 × 1,186,042.08 - Step 4: Simplify right side
1,790,703.84x = 2,930,018,754,355.78 - Step 5: Solve for x
x = 2,930,018,754,355.78/1,790,703.84 - Step 6: Final answer
x = 1,636,238.61
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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.