Finding the Fourth Proportional to 813,330.26, 1,121,398.04 and 659,934.08
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Solution
The fourth proportional to 813,330.26, 1,121,398.04 and 659,934.08 is: 909,899.48
Step by Step Solution
- Step 1: Write the proportion equation
813,330.26 : 1,121,398.04 = 659,934.08 : x - Step 2: Convert to fraction form
813,330.26/1,121,398.04 = 659,934.08/x - Step 3: Cross multiply
813,330.26x = 1,121,398.04 × 659,934.08 - Step 4: Simplify right side
813,330.26x = 740,048,779,884.05 - Step 5: Solve for x
x = 740,048,779,884.05/813,330.26 - Step 6: Final answer
x = 909,899.48
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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.