Finding the Fourth Proportional to 815,282.38, 1,125,122.04 and 471,106.90
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Solution
The fourth proportional to 815,282.38, 1,125,122.04 and 471,106.90 is: 650,146.22
Step by Step Solution
- Step 1: Write the proportion equation
815,282.38 : 1,125,122.04 = 471,106.90 : x - Step 2: Convert to fraction form
815,282.38/1,125,122.04 = 471,106.90/x - Step 3: Cross multiply
815,282.38x = 1,125,122.04 × 471,106.90 - Step 4: Simplify right side
815,282.38x = 530,052,756,386.08 - Step 5: Solve for x
x = 530,052,756,386.08/815,282.38 - Step 6: Final answer
x = 650,146.22
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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.