Finding the Fourth Proportional to 643,623.52, 888,372.77 and 401,760.46
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Solution
The fourth proportional to 643,623.52, 888,372.77 and 401,760.46 is: 554,536.99
Step by Step Solution
- Step 1: Write the proportion equation
643,623.52 : 888,372.77 = 401,760.46 : x - Step 2: Convert to fraction form
643,623.52/888,372.77 = 401,760.46/x - Step 3: Cross multiply
643,623.52x = 888,372.77 × 401,760.46 - Step 4: Simplify right side
643,623.52x = 356,913,046,831.24 - Step 5: Solve for x
x = 356,913,046,831.24/643,623.52 - Step 6: Final answer
x = 554,536.99
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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.