Finding the Fourth Proportional to 1,328,126.10, 1,981,830.55 and 1,184,987.42
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Solution
The fourth proportional to 1,328,126.10, 1,981,830.55 and 1,184,987.42 is: 1,768,238.92
Step by Step Solution
- Step 1: Write the proportion equation
1,328,126.10 : 1,981,830.55 = 1,184,987.42 : x - Step 2: Convert to fraction form
1,328,126.10/1,981,830.55 = 1,184,987.42/x - Step 3: Cross multiply
1,328,126.10x = 1,981,830.55 × 1,184,987.42 - Step 4: Simplify right side
1,328,126.10x = 2,348,444,264,396.74 - Step 5: Solve for x
x = 2,348,444,264,396.74/1,328,126.10 - Step 6: Final answer
x = 1,768,238.92
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.