Finding the Fourth Proportional to 639,547.20, 882,551.99 and 353,061.14
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Solution
The fourth proportional to 639,547.20, 882,551.99 and 353,061.14 is: 487,211.59
Step by Step Solution
- Step 1: Write the proportion equation
639,547.20 : 882,551.99 = 353,061.14 : x - Step 2: Convert to fraction form
639,547.20/882,551.99 = 353,061.14/x - Step 3: Cross multiply
639,547.20x = 882,551.99 × 353,061.14 - Step 4: Simplify right side
639,547.20x = 311,594,805,520.60 - Step 5: Solve for x
x = 311,594,805,520.60/639,547.20 - Step 6: Final answer
x = 487,211.59
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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.