Finding the Fourth Proportional to 815,195.02, 1,125,128.70 and 520,655.52
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Solution
The fourth proportional to 815,195.02, 1,125,128.70 and 520,655.52 is: 718,606.53
Step by Step Solution
- Step 1: Write the proportion equation
815,195.02 : 1,125,128.70 = 520,655.52 : x - Step 2: Convert to fraction form
815,195.02/1,125,128.70 = 520,655.52/x - Step 3: Cross multiply
815,195.02x = 1,125,128.70 × 520,655.52 - Step 4: Simplify right side
815,195.02x = 585,804,468,365.42 - Step 5: Solve for x
x = 585,804,468,365.42/815,195.02 - Step 6: Final answer
x = 718,606.53
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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.