Finding the Fourth Proportional to 506,071.05, 698,378.75 and 291,206.80
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Solution
The fourth proportional to 506,071.05, 698,378.75 and 291,206.80 is: 401,865.79
Step by Step Solution
- Step 1: Write the proportion equation
506,071.05 : 698,378.75 = 291,206.80 : x - Step 2: Convert to fraction form
506,071.05/698,378.75 = 291,206.80/x - Step 3: Cross multiply
506,071.05x = 698,378.75 × 291,206.80 - Step 4: Simplify right side
506,071.05x = 203,372,640,975.50 - Step 5: Solve for x
x = 203,372,640,975.50/506,071.05 - Step 6: Final answer
x = 401,865.79
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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.