Finding the Fourth Proportional to 1,111,953.15, 1,667,297.72 and 437,668.99
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Solution
The fourth proportional to 1,111,953.15, 1,667,297.72 and 437,668.99 is: 656,254.72
Step by Step Solution
- Step 1: Write the proportion equation
1,111,953.15 : 1,667,297.72 = 437,668.99 : x - Step 2: Convert to fraction form
1,111,953.15/1,667,297.72 = 437,668.99/x - Step 3: Cross multiply
1,111,953.15x = 1,667,297.72 × 437,668.99 - Step 4: Simplify right side
1,111,953.15x = 729,724,506,067.63 - Step 5: Solve for x
x = 729,724,506,067.63/1,111,953.15 - Step 6: Final answer
x = 656,254.72
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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.