Finding the Fourth Proportional to 1,412,437.80, 2,117,988.90 and 513,252.84
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Solution
The fourth proportional to 1,412,437.80, 2,117,988.90 and 513,252.84 is: 769,636.59
Step by Step Solution
- Step 1: Write the proportion equation
1,412,437.80 : 2,117,988.90 = 513,252.84 : x - Step 2: Convert to fraction form
1,412,437.80/2,117,988.90 = 513,252.84/x - Step 3: Cross multiply
1,412,437.80x = 2,117,988.90 × 513,252.84 - Step 4: Simplify right side
1,412,437.80x = 1,087,063,818,013.48 - Step 5: Solve for x
x = 1,087,063,818,013.48/1,412,437.80 - Step 6: Final answer
x = 769,636.59
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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.