Finding the Third Proportional to 645,854.34 and 1,390,430.81
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Solution
The third proportional to 645,854.34 and 1,390,430.81 is: 2,993,396.05
Step by Step Solution
- Step 1: Write the proportion equation
645,854.34 : 1,390,430.81 = 1,390,430.81 : x - Step 2: Convert to fraction form
645,854.34/1,390,430.81 = 1,390,430.81/x - Step 3: Cross multiply
645,854.34x = 1,390,430.81 × 1,390,430.81 - Step 4: Simplify right side
645,854.34x = 1,933,297,844,349.41 - Step 5: Solve for x
x = 1,933,297,844,349.41/645,854.34 - Step 6: Final answer
x = 2,993,396.05
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.