Finding the Fourth Proportional to 825,194.14, 1,138,767.15 and 462,618.08
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Solution
The fourth proportional to 825,194.14, 1,138,767.15 and 462,618.08 is: 638,412.52
Step by Step Solution
- Step 1: Write the proportion equation
825,194.14 : 1,138,767.15 = 462,618.08 : x - Step 2: Convert to fraction form
825,194.14/1,138,767.15 = 462,618.08/x - Step 3: Cross multiply
825,194.14x = 1,138,767.15 × 462,618.08 - Step 4: Simplify right side
825,194.14x = 526,814,272,500.07 - Step 5: Solve for x
x = 526,814,272,500.07/825,194.14 - Step 6: Final answer
x = 638,412.52
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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.