Finding the Fourth Proportional to 782,461.08, 1,079,810.06 and 438,294.11
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Solution
The fourth proportional to 782,461.08, 1,079,810.06 and 438,294.11 is: 604,853.58
Step by Step Solution
- Step 1: Write the proportion equation
782,461.08 : 1,079,810.06 = 438,294.11 : x - Step 2: Convert to fraction form
782,461.08/1,079,810.06 = 438,294.11/x - Step 3: Cross multiply
782,461.08x = 1,079,810.06 × 438,294.11 - Step 4: Simplify right side
782,461.08x = 473,274,381,626.23 - Step 5: Solve for x
x = 473,274,381,626.23/782,461.08 - Step 6: Final answer
x = 604,853.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.