Finding the Fourth Proportional to 519,911.13, 717,464.14 and 290,470.14
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Solution
The fourth proportional to 519,911.13, 717,464.14 and 290,470.14 is: 400,841.41
Step by Step Solution
- Step 1: Write the proportion equation
519,911.13 : 717,464.14 = 290,470.14 : x - Step 2: Convert to fraction form
519,911.13/717,464.14 = 290,470.14/x - Step 3: Cross multiply
519,911.13x = 717,464.14 × 290,470.14 - Step 4: Simplify right side
519,911.13x = 208,401,909,190.78 - Step 5: Solve for x
x = 208,401,909,190.78/519,911.13 - Step 6: Final answer
x = 400,841.41
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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.