Finding the Fourth Proportional to 1,610,946.99, 2,221,043.13 and 1,319,484.82
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Solution
The fourth proportional to 1,610,946.99, 2,221,043.13 and 1,319,484.82 is: 1,819,198.72
Step by Step Solution
- Step 1: Write the proportion equation
1,610,946.99 : 2,221,043.13 = 1,319,484.82 : x - Step 2: Convert to fraction form
1,610,946.99/2,221,043.13 = 1,319,484.82/x - Step 3: Cross multiply
1,610,946.99x = 2,221,043.13 × 1,319,484.82 - Step 4: Simplify right side
1,610,946.99x = 2,930,632,694,600.29 - Step 5: Solve for x
x = 2,930,632,694,600.29/1,610,946.99 - Step 6: Final answer
x = 1,819,198.72
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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.