Finding the Fourth Proportional to 628,701.63, 943,119.93 and 268,909.85
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Solution
The fourth proportional to 628,701.63, 943,119.93 and 268,909.85 is: 403,393.64
Step by Step Solution
- Step 1: Write the proportion equation
628,701.63 : 943,119.93 = 268,909.85 : x - Step 2: Convert to fraction form
628,701.63/943,119.93 = 268,909.85/x - Step 3: Cross multiply
628,701.63x = 943,119.93 × 268,909.85 - Step 4: Simplify right side
628,701.63x = 253,614,238,908.31 - Step 5: Solve for x
x = 253,614,238,908.31/628,701.63 - Step 6: Final answer
x = 403,393.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.