Finding the Fourth Proportional to 2,814,412.78, 3,881,764.56 and 1,768,138.18
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Solution
The fourth proportional to 2,814,412.78, 3,881,764.56 and 1,768,138.18 is: 2,438,695.62
Step by Step Solution
- Step 1: Write the proportion equation
2,814,412.78 : 3,881,764.56 = 1,768,138.18 : x - Step 2: Convert to fraction form
2,814,412.78/3,881,764.56 = 1,768,138.18/x - Step 3: Cross multiply
2,814,412.78x = 3,881,764.56 × 1,768,138.18 - Step 4: Simplify right side
2,814,412.78x = 6,863,496,124,306.90 - Step 5: Solve for x
x = 6,863,496,124,306.90/2,814,412.78 - Step 6: Final answer
x = 2,438,695.62
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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.