Finding the Fourth Proportional to 487,631.76, 673,067.09 and 283,722.08
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Solution
The fourth proportional to 487,631.76, 673,067.09 and 283,722.08 is: 391,615.16
Step by Step Solution
- Step 1: Write the proportion equation
487,631.76 : 673,067.09 = 283,722.08 : x - Step 2: Convert to fraction form
487,631.76/673,067.09 = 283,722.08/x - Step 3: Cross multiply
487,631.76x = 673,067.09 × 283,722.08 - Step 4: Simplify right side
487,631.76x = 190,963,989,970.40 - Step 5: Solve for x
x = 190,963,989,970.40/487,631.76 - Step 6: Final answer
x = 391,615.16
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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.