Finding the Fourth Proportional to 626,634.21, 864,754.47 and 340,154.28
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Solution
The fourth proportional to 626,634.21, 864,754.47 and 340,154.28 is: 469,412.50
Step by Step Solution
- Step 1: Write the proportion equation
626,634.21 : 864,754.47 = 340,154.28 : x - Step 2: Convert to fraction form
626,634.21/864,754.47 = 340,154.28/x - Step 3: Cross multiply
626,634.21x = 864,754.47 × 340,154.28 - Step 4: Simplify right side
626,634.21x = 294,149,934,119.63 - Step 5: Solve for x
x = 294,149,934,119.63/626,634.21 - Step 6: Final answer
x = 469,412.50
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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.