Finding the Fourth Proportional to 853,311.80, 1,177,547.70 and 471,330.38
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Solution
The fourth proportional to 853,311.80, 1,177,547.70 and 471,330.38 is: 650,423.45
Step by Step Solution
- Step 1: Write the proportion equation
853,311.80 : 1,177,547.70 = 471,330.38 : x - Step 2: Convert to fraction form
853,311.80/1,177,547.70 = 471,330.38/x - Step 3: Cross multiply
853,311.80x = 1,177,547.70 × 471,330.38 - Step 4: Simplify right side
853,311.80x = 555,014,004,909.13 - Step 5: Solve for x
x = 555,014,004,909.13/853,311.80 - Step 6: Final answer
x = 650,423.45
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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.