Finding the Fourth Proportional to 579,465.80, 869,198.70 and 439,497.80
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Solution
The fourth proportional to 579,465.80, 869,198.70 and 439,497.80 is: 659,246.70
Step by Step Solution
- Step 1: Write the proportion equation
579,465.80 : 869,198.70 = 439,497.80 : x - Step 2: Convert to fraction form
579,465.80/869,198.70 = 439,497.80/x - Step 3: Cross multiply
579,465.80x = 869,198.70 × 439,497.80 - Step 4: Simplify right side
579,465.80x = 382,010,916,412.86 - Step 5: Solve for x
x = 382,010,916,412.86/579,465.80 - Step 6: Final answer
x = 659,246.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.