Finding the Fourth Proportional to 429,246.63, 643,883.67 and 215,898.09
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Solution
The fourth proportional to 429,246.63, 643,883.67 and 215,898.09 is: 323,854.04
Step by Step Solution
- Step 1: Write the proportion equation
429,246.63 : 643,883.67 = 215,898.09 : x - Step 2: Convert to fraction form
429,246.63/643,883.67 = 215,898.09/x - Step 3: Cross multiply
429,246.63x = 643,883.67 × 215,898.09 - Step 4: Simplify right side
429,246.63x = 139,013,254,535.19 - Step 5: Solve for x
x = 139,013,254,535.19/429,246.63 - Step 6: Final answer
x = 323,854.04
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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.