Finding the Fourth Proportional to 1,521,666.18, 2,099,962.62 and 842,602.68
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Solution
The fourth proportional to 1,521,666.18, 2,099,962.62 and 842,602.68 is: 1,162,826.75
Step by Step Solution
- Step 1: Write the proportion equation
1,521,666.18 : 2,099,962.62 = 842,602.68 : x - Step 2: Convert to fraction form
1,521,666.18/2,099,962.62 = 842,602.68/x - Step 3: Cross multiply
1,521,666.18x = 2,099,962.62 × 842,602.68 - Step 4: Simplify right side
1,521,666.18x = 1,769,434,131,511.82 - Step 5: Solve for x
x = 1,769,434,131,511.82/1,521,666.18 - Step 6: Final answer
x = 1,162,826.75
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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.