Finding the Fourth Proportional to 1,214,780.63, 1,676,397.42 and 705,515.81
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Solution
The fourth proportional to 1,214,780.63, 1,676,397.42 and 705,515.81 is: 973,611.90
Step by Step Solution
- Step 1: Write the proportion equation
1,214,780.63 : 1,676,397.42 = 705,515.81 : x - Step 2: Convert to fraction form
1,214,780.63/1,676,397.42 = 705,515.81/x - Step 3: Cross multiply
1,214,780.63x = 1,676,397.42 × 705,515.81 - Step 4: Simplify right side
1,214,780.63x = 1,182,724,875,271.22 - Step 5: Solve for x
x = 1,182,724,875,271.22/1,214,780.63 - Step 6: Final answer
x = 973,611.90
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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.