Finding the Fourth Proportional to 579,293.12, 798,586.80 and 406,685.52
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Solution
The fourth proportional to 579,293.12, 798,586.80 and 406,685.52 is: 560,637.92
Step by Step Solution
- Step 1: Write the proportion equation
579,293.12 : 798,586.80 = 406,685.52 : x - Step 2: Convert to fraction form
579,293.12/798,586.80 = 406,685.52/x - Step 3: Cross multiply
579,293.12x = 798,586.80 × 406,685.52 - Step 4: Simplify right side
579,293.12x = 324,773,688,023.14 - Step 5: Solve for x
x = 324,773,688,023.14/579,293.12 - Step 6: Final answer
x = 560,637.92
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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.