Finding the Fourth Proportional to 464,221.87, 640,740.13 and 283,033.71
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Solution
The fourth proportional to 464,221.87, 640,740.13 and 283,033.71 is: 390,655.99
Step by Step Solution
- Step 1: Write the proportion equation
464,221.87 : 640,740.13 = 283,033.71 : x - Step 2: Convert to fraction form
464,221.87/640,740.13 = 283,033.71/x - Step 3: Cross multiply
464,221.87x = 640,740.13 × 283,033.71 - Step 4: Simplify right side
464,221.87x = 181,351,055,432.20 - Step 5: Solve for x
x = 181,351,055,432.20/464,221.87 - Step 6: Final answer
x = 390,655.99
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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.