Finding the Fourth Proportional to 631,069.68, 870,876.09 and 344,589.96
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Solution
The fourth proportional to 631,069.68, 870,876.09 and 344,589.96 is: 475,534.11
Step by Step Solution
- Step 1: Write the proportion equation
631,069.68 : 870,876.09 = 344,589.96 : x - Step 2: Convert to fraction form
631,069.68/870,876.09 = 344,589.96/x - Step 3: Cross multiply
631,069.68x = 870,876.09 × 344,589.96 - Step 4: Simplify right side
631,069.68x = 300,095,157,018.06 - Step 5: Solve for x
x = 300,095,157,018.06/631,069.68 - Step 6: Final answer
x = 475,534.11
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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.