Finding the Fourth Proportional to 728,434.08, 1,092,813.48 and 223,066.08
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Solution
The fourth proportional to 728,434.08, 1,092,813.48 and 223,066.08 is: 334,648.84
Step by Step Solution
- Step 1: Write the proportion equation
728,434.08 : 1,092,813.48 = 223,066.08 : x - Step 2: Convert to fraction form
728,434.08/1,092,813.48 = 223,066.08/x - Step 3: Cross multiply
728,434.08x = 1,092,813.48 × 223,066.08 - Step 4: Simplify right side
728,434.08x = 243,769,619,154.76 - Step 5: Solve for x
x = 243,769,619,154.76/728,434.08 - Step 6: Final answer
x = 334,648.84
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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.