Finding the Fourth Proportional to 626,741.08, 864,067.34 and 498,109.08
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Solution
The fourth proportional to 626,741.08, 864,067.34 and 498,109.08 is: 686,726.63
Step by Step Solution
- Step 1: Write the proportion equation
626,741.08 : 864,067.34 = 498,109.08 : x - Step 2: Convert to fraction form
626,741.08/864,067.34 = 498,109.08/x - Step 3: Cross multiply
626,741.08x = 864,067.34 × 498,109.08 - Step 4: Simplify right side
626,741.08x = 430,399,787,785.45 - Step 5: Solve for x
x = 430,399,787,785.45/626,741.08 - Step 6: Final answer
x = 686,726.63
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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.