Finding the Fourth Proportional to 615,579.15, 849,852.60 and 469,236.03
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Solution
The fourth proportional to 615,579.15, 849,852.60 and 469,236.03 is: 647,815.09
Step by Step Solution
- Step 1: Write the proportion equation
615,579.15 : 849,852.60 = 469,236.03 : x - Step 2: Convert to fraction form
615,579.15/849,852.60 = 469,236.03/x - Step 3: Cross multiply
615,579.15x = 849,852.60 × 469,236.03 - Step 4: Simplify right side
615,579.15x = 398,781,460,109.18 - Step 5: Solve for x
x = 398,781,460,109.18/615,579.15 - Step 6: Final answer
x = 647,815.09
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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.