Finding the Fourth Proportional to 2,919,009.40, 4,378,514.10 and 1,911,239.80
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Solution
The fourth proportional to 2,919,009.40, 4,378,514.10 and 1,911,239.80 is: 2,866,859.70
Step by Step Solution
- Step 1: Write the proportion equation
2,919,009.40 : 4,378,514.10 = 1,911,239.80 : x - Step 2: Convert to fraction form
2,919,009.40/4,378,514.10 = 1,911,239.80/x - Step 3: Cross multiply
2,919,009.40x = 4,378,514.10 × 1,911,239.80 - Step 4: Simplify right side
2,919,009.40x = 8,368,390,412,781.18 - Step 5: Solve for x
x = 8,368,390,412,781.18/2,919,009.40 - Step 6: Final answer
x = 2,866,859.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.