Finding the Fourth Proportional to 667,713.08, 921,444.98 and 361,792.78
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Solution
The fourth proportional to 667,713.08, 921,444.98 and 361,792.78 is: 499,274.54
Step by Step Solution
- Step 1: Write the proportion equation
667,713.08 : 921,444.98 = 361,792.78 : x - Step 2: Convert to fraction form
667,713.08/921,444.98 = 361,792.78/x - Step 3: Cross multiply
667,713.08x = 921,444.98 × 361,792.78 - Step 4: Simplify right side
667,713.08x = 333,372,140,931.24 - Step 5: Solve for x
x = 333,372,140,931.24/667,713.08 - Step 6: Final answer
x = 499,274.54
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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.