Finding the Fourth Proportional to 665,677.80, 998,516.70 and 508,213.80
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Solution
The fourth proportional to 665,677.80, 998,516.70 and 508,213.80 is: 762,320.70
Step by Step Solution
- Step 1: Write the proportion equation
665,677.80 : 998,516.70 = 508,213.80 : x - Step 2: Convert to fraction form
665,677.80/998,516.70 = 508,213.80/x - Step 3: Cross multiply
665,677.80x = 998,516.70 × 508,213.80 - Step 4: Simplify right side
665,677.80x = 507,459,966,470.46 - Step 5: Solve for x
x = 507,459,966,470.46/665,677.80 - Step 6: Final answer
x = 762,320.70
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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.