Finding the Fourth Proportional to 643,332.17, 887,904.84 and 356,944.52
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Solution
The fourth proportional to 643,332.17, 887,904.84 and 356,944.52 is: 492,642.50
Step by Step Solution
- Step 1: Write the proportion equation
643,332.17 : 887,904.84 = 356,944.52 : x - Step 2: Convert to fraction form
643,332.17/887,904.84 = 356,944.52/x - Step 3: Cross multiply
643,332.17x = 887,904.84 × 356,944.52 - Step 4: Simplify right side
643,332.17x = 316,932,768,469.97 - Step 5: Solve for x
x = 316,932,768,469.97/643,332.17 - Step 6: Final answer
x = 492,642.50
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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.