Finding the Fourth Proportional to 829,411.17, 1,143,997.80 and 553,629.99
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Solution
The fourth proportional to 829,411.17, 1,143,997.80 and 553,629.99 is: 763,615.82
Step by Step Solution
- Step 1: Write the proportion equation
829,411.17 : 1,143,997.80 = 553,629.99 : x - Step 2: Convert to fraction form
829,411.17/1,143,997.80 = 553,629.99/x - Step 3: Cross multiply
829,411.17x = 1,143,997.80 × 553,629.99 - Step 4: Simplify right side
829,411.17x = 633,351,490,574.02 - Step 5: Solve for x
x = 633,351,490,574.02/829,411.17 - Step 6: Final answer
x = 763,615.82
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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.