Finding the Fourth Proportional to 1,184,644.80, 1,634,803.74 and 640,778.94
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Solution
The fourth proportional to 1,184,644.80, 1,634,803.74 and 640,778.94 is: 884,271.65
Step by Step Solution
- Step 1: Write the proportion equation
1,184,644.80 : 1,634,803.74 = 640,778.94 : x - Step 2: Convert to fraction form
1,184,644.80/1,634,803.74 = 640,778.94/x - Step 3: Cross multiply
1,184,644.80x = 1,634,803.74 × 640,778.94 - Step 4: Simplify right side
1,184,644.80x = 1,047,547,807,625.24 - Step 5: Solve for x
x = 1,047,547,807,625.24/1,184,644.80 - Step 6: Final answer
x = 884,271.65
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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.