Finding the Fourth Proportional to 858,805.10, 1,288,207.65 and 433,652.30
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Solution
The fourth proportional to 858,805.10, 1,288,207.65 and 433,652.30 is: 650,478.45
Step by Step Solution
- Step 1: Write the proportion equation
858,805.10 : 1,288,207.65 = 433,652.30 : x - Step 2: Convert to fraction form
858,805.10/1,288,207.65 = 433,652.30/x - Step 3: Cross multiply
858,805.10x = 1,288,207.65 × 433,652.30 - Step 4: Simplify right side
858,805.10x = 558,634,210,300.10 - Step 5: Solve for x
x = 558,634,210,300.10/858,805.10 - Step 6: Final answer
x = 650,478.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.