Finding the Fourth Proportional to 407,721.35, 608,836.25 and 332,989.74
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Solution
The fourth proportional to 407,721.35, 608,836.25 and 332,989.74 is: 497,242.11
Step by Step Solution
- Step 1: Write the proportion equation
407,721.35 : 608,836.25 = 332,989.74 : x - Step 2: Convert to fraction form
407,721.35/608,836.25 = 332,989.74/x - Step 3: Cross multiply
407,721.35x = 608,836.25 × 332,989.74 - Step 4: Simplify right side
407,721.35x = 202,736,222,925.13 - Step 5: Solve for x
x = 202,736,222,925.13/407,721.35 - Step 6: Final answer
x = 497,242.11
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.