Finding the Fourth Proportional to 497,686.10, 746,529.15 and 272,959.70
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Solution
The fourth proportional to 497,686.10, 746,529.15 and 272,959.70 is: 409,439.55
Step by Step Solution
- Step 1: Write the proportion equation
497,686.10 : 746,529.15 = 272,959.70 : x - Step 2: Convert to fraction form
497,686.10/746,529.15 = 272,959.70/x - Step 3: Cross multiply
497,686.10x = 746,529.15 × 272,959.70 - Step 4: Simplify right side
497,686.10x = 203,772,372,825.26 - Step 5: Solve for x
x = 203,772,372,825.26/497,686.10 - Step 6: Final answer
x = 409,439.55
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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.