Finding the Fourth Proportional to 436,425.93, 602,646.21 and 321,903.05
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Solution
The fourth proportional to 436,425.93, 602,646.21 and 321,903.05 is: 444,505.33
Step by Step Solution
- Step 1: Write the proportion equation
436,425.93 : 602,646.21 = 321,903.05 : x - Step 2: Convert to fraction form
436,425.93/602,646.21 = 321,903.05/x - Step 3: Cross multiply
436,425.93x = 602,646.21 × 321,903.05 - Step 4: Simplify right side
436,425.93x = 193,993,650,056.71 - Step 5: Solve for x
x = 193,993,650,056.71/436,425.93 - Step 6: Final answer
x = 444,505.33
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1.5x scale
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.