Finding the Fourth Proportional to 646,079.22, 969,334.63 and 286,201.18
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Solution
The fourth proportional to 646,079.22, 969,334.63 and 286,201.18 is: 429,397.37
Step by Step Solution
- Step 1: Write the proportion equation
646,079.22 : 969,334.63 = 286,201.18 : x - Step 2: Convert to fraction form
646,079.22/969,334.63 = 286,201.18/x - Step 3: Cross multiply
646,079.22x = 969,334.63 × 286,201.18 - Step 4: Simplify right side
646,079.22x = 277,424,715,417.03 - Step 5: Solve for x
x = 277,424,715,417.03/646,079.22 - Step 6: Final answer
x = 429,397.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.