Finding the Fourth Proportional to 740,961.84, 1,022,528.40 and 401,430.08
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Solution
The fourth proportional to 740,961.84, 1,022,528.40 and 401,430.08 is: 553,974.09
Step by Step Solution
- Step 1: Write the proportion equation
740,961.84 : 1,022,528.40 = 401,430.08 : x - Step 2: Convert to fraction form
740,961.84/1,022,528.40 = 401,430.08/x - Step 3: Cross multiply
740,961.84x = 1,022,528.40 × 401,430.08 - Step 4: Simplify right side
740,961.84x = 410,473,657,414.27 - Step 5: Solve for x
x = 410,473,657,414.27/740,961.84 - Step 6: Final answer
x = 553,974.09
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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.