Finding the Fourth Proportional to 716,381.38, 988,516.23 and 484,312.96
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Solution
The fourth proportional to 716,381.38, 988,516.23 and 484,312.96 is: 668,290.99
Step by Step Solution
- Step 1: Write the proportion equation
716,381.38 : 988,516.23 = 484,312.96 : x - Step 2: Convert to fraction form
716,381.38/988,516.23 = 484,312.96/x - Step 3: Cross multiply
716,381.38x = 988,516.23 × 484,312.96 - Step 4: Simplify right side
716,381.38x = 478,751,221,359.34 - Step 5: Solve for x
x = 478,751,221,359.34/716,381.38 - Step 6: Final answer
x = 668,290.99
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1.5x scale
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.