Finding the Fourth Proportional to 601,628.40, 829,936.80 and 407,970.63
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Solution
The fourth proportional to 601,628.40, 829,936.80 and 407,970.63 is: 562,788.99
Step by Step Solution
- Step 1: Write the proportion equation
601,628.40 : 829,936.80 = 407,970.63 : x - Step 2: Convert to fraction form
601,628.40/829,936.80 = 407,970.63/x - Step 3: Cross multiply
601,628.40x = 829,936.80 × 407,970.63 - Step 4: Simplify right side
601,628.40x = 338,589,839,156.18 - Step 5: Solve for x
x = 338,589,839,156.18/601,628.40 - Step 6: Final answer
x = 562,788.99
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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.