Finding the Fourth Proportional to 565,622.19, 780,538.68 and 310,971.42
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Solution
The fourth proportional to 565,622.19, 780,538.68 and 310,971.42 is: 429,129.60
Step by Step Solution
- Step 1: Write the proportion equation
565,622.19 : 780,538.68 = 310,971.42 : x - Step 2: Convert to fraction form
565,622.19/780,538.68 = 310,971.42/x - Step 3: Cross multiply
565,622.19x = 780,538.68 × 310,971.42 - Step 4: Simplify right side
565,622.19x = 242,725,221,684.53 - Step 5: Solve for x
x = 242,725,221,684.53/565,622.19 - Step 6: Final answer
x = 429,129.60
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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.