Finding the Fourth Proportional to 858,701.05, 1,184,953.56 and 471,513.76
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Solution
The fourth proportional to 858,701.05, 1,184,953.56 and 471,513.76 is: 650,659.40
Step by Step Solution
- Step 1: Write the proportion equation
858,701.05 : 1,184,953.56 = 471,513.76 : x - Step 2: Convert to fraction form
858,701.05/1,184,953.56 = 471,513.76/x - Step 3: Cross multiply
858,701.05x = 1,184,953.56 × 471,513.76 - Step 4: Simplify right side
858,701.05x = 558,721,911,268.97 - Step 5: Solve for x
x = 558,721,911,268.97/858,701.05 - Step 6: Final answer
x = 650,659.40
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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.