Finding the Fourth Proportional to 905,584.12, 1,249,736.06 and 497,700.42
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Solution
The fourth proportional to 905,584.12, 1,249,736.06 and 497,700.42 is: 686,843.04
Step by Step Solution
- Step 1: Write the proportion equation
905,584.12 : 1,249,736.06 = 497,700.42 : x - Step 2: Convert to fraction form
905,584.12/1,249,736.06 = 497,700.42/x - Step 3: Cross multiply
905,584.12x = 1,249,736.06 × 497,700.42 - Step 4: Simplify right side
905,584.12x = 621,994,153,213.96 - Step 5: Solve for x
x = 621,994,153,213.96/905,584.12 - Step 6: Final answer
x = 686,843.04
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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.