Finding the Fourth Proportional to 690,729.83, 953,226.09 and 432,582.63
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Solution
The fourth proportional to 690,729.83, 953,226.09 and 432,582.63 is: 596,975.88
Step by Step Solution
- Step 1: Write the proportion equation
690,729.83 : 953,226.09 = 432,582.63 : x - Step 2: Convert to fraction form
690,729.83/953,226.09 = 432,582.63/x - Step 3: Cross multiply
690,729.83x = 953,226.09 × 432,582.63 - Step 4: Simplify right side
690,729.83x = 412,349,045,422.22 - Step 5: Solve for x
x = 412,349,045,422.22/690,729.83 - Step 6: Final answer
x = 596,975.88
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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.