Finding the Fourth Proportional to 423,412.20, 585,148.68 and 346,809.96
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Solution
The fourth proportional to 423,412.20, 585,148.68 and 346,809.96 is: 479,285.65
Step by Step Solution
- Step 1: Write the proportion equation
423,412.20 : 585,148.68 = 346,809.96 : x - Step 2: Convert to fraction form
423,412.20/585,148.68 = 346,809.96/x - Step 3: Cross multiply
423,412.20x = 585,148.68 × 346,809.96 - Step 4: Simplify right side
423,412.20x = 202,935,390,304.85 - Step 5: Solve for x
x = 202,935,390,304.85/423,412.20 - Step 6: Final answer
x = 479,285.65
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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.