Finding the Fourth Proportional to 486,025.80, 729,038.70 and 432,881.70
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Solution
The fourth proportional to 486,025.80, 729,038.70 and 432,881.70 is: 649,322.55
Step by Step Solution
- Step 1: Write the proportion equation
486,025.80 : 729,038.70 = 432,881.70 : x - Step 2: Convert to fraction form
486,025.80/729,038.70 = 432,881.70/x - Step 3: Cross multiply
486,025.80x = 729,038.70 × 432,881.70 - Step 4: Simplify right side
486,025.80x = 315,587,511,821.79 - Step 5: Solve for x
x = 315,587,511,821.79/486,025.80 - Step 6: Final answer
x = 649,322.55
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1.5x scale
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.