Finding the Fourth Proportional to 1,184,639.40, 1,634,802.56 and 640,774.95
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Solution
The fourth proportional to 1,184,639.40, 1,634,802.56 and 640,774.95 is: 884,269.53
Step by Step Solution
- Step 1: Write the proportion equation
1,184,639.40 : 1,634,802.56 = 640,774.95 : x - Step 2: Convert to fraction form
1,184,639.40/1,634,802.56 = 640,774.95/x - Step 3: Cross multiply
1,184,639.40x = 1,634,802.56 × 640,774.95 - Step 4: Simplify right side
1,184,639.40x = 1,047,540,517,265.98 - Step 5: Solve for x
x = 1,047,540,517,265.98/1,184,639.40 - Step 6: Final answer
x = 884,269.53
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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.