Finding the Fourth Proportional to 814,126.68, 1,122,196.68 and 641,763.54
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Solution
The fourth proportional to 814,126.68, 1,122,196.68 and 641,763.54 is: 884,610.38
Step by Step Solution
- Step 1: Write the proportion equation
814,126.68 : 1,122,196.68 = 641,763.54 : x - Step 2: Convert to fraction form
814,126.68/1,122,196.68 = 641,763.54/x - Step 3: Cross multiply
814,126.68x = 1,122,196.68 × 641,763.54 - Step 4: Simplify right side
814,126.68x = 720,184,913,933.05 - Step 5: Solve for x
x = 720,184,913,933.05/814,126.68 - Step 6: Final answer
x = 884,610.38
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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.