Finding the Fourth Proportional to 722,709.08, 997,370.48 and 400,419.08
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Solution
The fourth proportional to 722,709.08, 997,370.48 and 400,419.08 is: 552,596.03
Step by Step Solution
- Step 1: Write the proportion equation
722,709.08 : 997,370.48 = 400,419.08 : x - Step 2: Convert to fraction form
722,709.08/997,370.48 = 400,419.08/x - Step 3: Cross multiply
722,709.08x = 997,370.48 × 400,419.08 - Step 4: Simplify right side
722,709.08x = 399,366,170,020.76 - Step 5: Solve for x
x = 399,366,170,020.76/722,709.08 - Step 6: Final answer
x = 552,596.03
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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.