Finding the Fourth Proportional to 872,434.97, 1,308,652.93 and 398,788.18
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Solution
The fourth proportional to 872,434.97, 1,308,652.93 and 398,788.18 is: 598,182.48
Step by Step Solution
- Step 1: Write the proportion equation
872,434.97 : 1,308,652.93 = 398,788.18 : x - Step 2: Convert to fraction form
872,434.97/1,308,652.93 = 398,788.18/x - Step 3: Cross multiply
872,434.97x = 1,308,652.93 × 398,788.18 - Step 4: Simplify right side
872,434.97x = 521,875,317,433.22 - Step 5: Solve for x
x = 521,875,317,433.22/872,434.97 - Step 6: Final answer
x = 598,182.48
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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.