Finding the Fourth Proportional to 645,989.74, 891,265.21 and 366,541.03
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Solution
The fourth proportional to 645,989.74, 891,265.21 and 366,541.03 is: 505,712.78
Step by Step Solution
- Step 1: Write the proportion equation
645,989.74 : 891,265.21 = 366,541.03 : x - Step 2: Convert to fraction form
645,989.74/891,265.21 = 366,541.03/x - Step 3: Cross multiply
645,989.74x = 891,265.21 × 366,541.03 - Step 4: Simplify right side
645,989.74x = 326,685,265,621.13 - Step 5: Solve for x
x = 326,685,265,621.13/645,989.74 - Step 6: Final answer
x = 505,712.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.