Finding the Fourth Proportional to 813,481.14, 1,122,590.40 and 445,955.82
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Solution
The fourth proportional to 813,481.14, 1,122,590.40 and 445,955.82 is: 615,411.59
Step by Step Solution
- Step 1: Write the proportion equation
813,481.14 : 1,122,590.40 = 445,955.82 : x - Step 2: Convert to fraction form
813,481.14/1,122,590.40 = 445,955.82/x - Step 3: Cross multiply
813,481.14x = 1,122,590.40 × 445,955.82 - Step 4: Simplify right side
813,481.14x = 500,625,722,356.13 - Step 5: Solve for x
x = 500,625,722,356.13/813,481.14 - Step 6: Final answer
x = 615,411.59
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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.