Finding the Third Proportional to 689,621 and 1,070,306
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Solution
The third proportional to 689,621 and 1,070,306 is: 1,661,136.96
Step by Step Solution
- Step 1: Write the proportion equation
689,621 : 1,070,306 = 1,070,306 : x - Step 2: Convert to fraction form
689,621/1,070,306 = 1,070,306/x - Step 3: Cross multiply
689,621x = 1,070,306 × 1,070,306 - Step 4: Simplify right side
689,621x = 1,145,554,933,636 - Step 5: Solve for x
x = 1,145,554,933,636/689,621 - Step 6: Final answer
x = 1,661,136.96
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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.