Finding the Fourth Proportional to 553,614.26, 763,987.68 and 298,965.44
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Solution
The fourth proportional to 553,614.26, 763,987.68 and 298,965.44 is: 412,572.31
Step by Step Solution
- Step 1: Write the proportion equation
553,614.26 : 763,987.68 = 298,965.44 : x - Step 2: Convert to fraction form
553,614.26/763,987.68 = 298,965.44/x - Step 3: Cross multiply
553,614.26x = 763,987.68 × 298,965.44 - Step 4: Simplify right side
553,614.26x = 228,405,911,410.95 - Step 5: Solve for x
x = 228,405,911,410.95/553,614.26 - Step 6: Final answer
x = 412,572.31
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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.