Finding the Fourth Proportional to 2,919,790.80, 4,376,705.40 and 1,973,257.20
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Solution
The fourth proportional to 2,919,790.80, 4,376,705.40 and 1,973,257.20 is: 2,957,871.31
Step by Step Solution
- Step 1: Write the proportion equation
2,919,790.80 : 4,376,705.40 = 1,973,257.20 : x - Step 2: Convert to fraction form
2,919,790.80/4,376,705.40 = 1,973,257.20/x - Step 3: Cross multiply
2,919,790.80x = 4,376,705.40 × 1,973,257.20 - Step 4: Simplify right side
2,919,790.80x = 8,636,365,442,828.88 - Step 5: Solve for x
x = 8,636,365,442,828.88/2,919,790.80 - Step 6: Final answer
x = 2,957,871.31
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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.