Finding the Fourth Proportional to 857,036.01, 1,182,684.07 and 469,838.19
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Solution
The fourth proportional to 857,036.01, 1,182,684.07 and 469,838.19 is: 648,362.65
Step by Step Solution
- Step 1: Write the proportion equation
857,036.01 : 1,182,684.07 = 469,838.19 : x - Step 2: Convert to fraction form
857,036.01/1,182,684.07 = 469,838.19/x - Step 3: Cross multiply
857,036.01x = 1,182,684.07 × 469,838.19 - Step 4: Simplify right side
857,036.01x = 555,670,142,790.63 - Step 5: Solve for x
x = 555,670,142,790.63/857,036.01 - Step 6: Final answer
x = 648,362.65
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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.