Finding the Fourth Proportional to 472,816.57, 652,486.12 and 257,956.56
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Solution
The fourth proportional to 472,816.57, 652,486.12 and 257,956.56 is: 355,979.65
Step by Step Solution
- Step 1: Write the proportion equation
472,816.57 : 652,486.12 = 257,956.56 : x - Step 2: Convert to fraction form
472,816.57/652,486.12 = 257,956.56/x - Step 3: Cross multiply
472,816.57x = 652,486.12 × 257,956.56 - Step 4: Simplify right side
472,816.57x = 168,313,074,962.95 - Step 5: Solve for x
x = 168,313,074,962.95/472,816.57 - Step 6: Final answer
x = 355,979.65
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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.