Finding the Fourth Proportional to 983,405.70, 1,475,157.15 and 511,013.70
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Solution
The fourth proportional to 983,405.70, 1,475,157.15 and 511,013.70 is: 766,545.80
Step by Step Solution
- Step 1: Write the proportion equation
983,405.70 : 1,475,157.15 = 511,013.70 : x - Step 2: Convert to fraction form
983,405.70/1,475,157.15 = 511,013.70/x - Step 3: Cross multiply
983,405.70x = 1,475,157.15 × 511,013.70 - Step 4: Simplify right side
983,405.70x = 753,825,513,302.96 - Step 5: Solve for x
x = 753,825,513,302.96/983,405.70 - Step 6: Final answer
x = 766,545.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.