Finding the Fourth Proportional to 853,812.19, 1,178,262.70 and 466,633.81
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Solution
The fourth proportional to 853,812.19, 1,178,262.70 and 466,633.81 is: 643,955.69
Step by Step Solution
- Step 1: Write the proportion equation
853,812.19 : 1,178,262.70 = 466,633.81 : x - Step 2: Convert to fraction form
853,812.19/1,178,262.70 = 466,633.81/x - Step 3: Cross multiply
853,812.19x = 1,178,262.70 × 466,633.81 - Step 4: Simplify right side
853,812.19x = 549,817,215,812.95 - Step 5: Solve for x
x = 549,817,215,812.95/853,812.19 - Step 6: Final answer
x = 643,955.69
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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.