Finding the Fourth Proportional to 862,941.99, 1,190,900.70 and 480,971.55
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Solution
The fourth proportional to 862,941.99, 1,190,900.70 and 480,971.55 is: 663,763.45
Step by Step Solution
- Step 1: Write the proportion equation
862,941.99 : 1,190,900.70 = 480,971.55 : x - Step 2: Convert to fraction form
862,941.99/1,190,900.70 = 480,971.55/x - Step 3: Cross multiply
862,941.99x = 1,190,900.70 × 480,971.55 - Step 4: Simplify right side
862,941.99x = 572,789,355,575.09 - Step 5: Solve for x
x = 572,789,355,575.09/862,941.99 - Step 6: Final answer
x = 663,763.45
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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.