Finding the Fourth Proportional to 716,149.94, 988,293.52 and 389,466.02
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Solution
The fourth proportional to 716,149.94, 988,293.52 and 389,466.02 is: 537,466.70
Step by Step Solution
- Step 1: Write the proportion equation
716,149.94 : 988,293.52 = 389,466.02 : x - Step 2: Convert to fraction form
716,149.94/988,293.52 = 389,466.02/x - Step 3: Cross multiply
716,149.94x = 988,293.52 × 389,466.02 - Step 4: Simplify right side
716,149.94x = 384,906,746,053.36 - Step 5: Solve for x
x = 384,906,746,053.36/716,149.94 - Step 6: Final answer
x = 537,466.70
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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.