Finding the Fourth Proportional to 689,423.40, 1,034,135.10 and 465,474.60
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Solution
The fourth proportional to 689,423.40, 1,034,135.10 and 465,474.60 is: 698,211.90
Step by Step Solution
- Step 1: Write the proportion equation
689,423.40 : 1,034,135.10 = 465,474.60 : x - Step 2: Convert to fraction form
689,423.40/1,034,135.10 = 465,474.60/x - Step 3: Cross multiply
689,423.40x = 1,034,135.10 × 465,474.60 - Step 4: Simplify right side
689,423.40x = 481,363,622,018.46 - Step 5: Solve for x
x = 481,363,622,018.46/689,423.40 - Step 6: Final answer
x = 698,211.90
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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.