Finding the Fourth Proportional to 690,944.10, 953,708.14 and 436,464.78
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Solution
The fourth proportional to 690,944.10, 953,708.14 and 436,464.78 is: 602,451.07
Step by Step Solution
- Step 1: Write the proportion equation
690,944.10 : 953,708.14 = 436,464.78 : x - Step 2: Convert to fraction form
690,944.10/953,708.14 = 436,464.78/x - Step 3: Cross multiply
690,944.10x = 953,708.14 × 436,464.78 - Step 4: Simplify right side
690,944.10x = 416,260,013,509.31 - Step 5: Solve for x
x = 416,260,013,509.31/690,944.10 - Step 6: Final answer
x = 602,451.07
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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.