Finding the Fourth Proportional to 680,455.80, 1,020,683.70 and 348,679.80
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Solution
The fourth proportional to 680,455.80, 1,020,683.70 and 348,679.80 is: 523,019.70
Step by Step Solution
- Step 1: Write the proportion equation
680,455.80 : 1,020,683.70 = 348,679.80 : x - Step 2: Convert to fraction form
680,455.80/1,020,683.70 = 348,679.80/x - Step 3: Cross multiply
680,455.80x = 1,020,683.70 × 348,679.80 - Step 4: Simplify right side
680,455.80x = 355,891,788,379.26 - Step 5: Solve for x
x = 355,891,788,379.26/680,455.80 - Step 6: Final answer
x = 523,019.70
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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.