Finding the Fourth Proportional to 853,404.78, 1,177,655.28 and 471,357.74
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Solution
The fourth proportional to 853,404.78, 1,177,655.28 and 471,357.74 is: 650,449.76
Step by Step Solution
- Step 1: Write the proportion equation
853,404.78 : 1,177,655.28 = 471,357.74 : x - Step 2: Convert to fraction form
853,404.78/1,177,655.28 = 471,357.74/x - Step 3: Cross multiply
853,404.78x = 1,177,655.28 × 471,357.74 - Step 4: Simplify right side
853,404.78x = 555,096,931,279.87 - Step 5: Solve for x
x = 555,096,931,279.87/853,404.78 - Step 6: Final answer
x = 650,449.76
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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.