Finding the Fourth Proportional to 728,368.04, 1,092,539.10 and 278,967.08
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Solution
The fourth proportional to 728,368.04, 1,092,539.10 and 278,967.08 is: 418,445.66
Step by Step Solution
- Step 1: Write the proportion equation
728,368.04 : 1,092,539.10 = 278,967.08 : x - Step 2: Convert to fraction form
728,368.04/1,092,539.10 = 278,967.08/x - Step 3: Cross multiply
728,368.04x = 1,092,539.10 × 278,967.08 - Step 4: Simplify right side
728,368.04x = 304,782,442,512.83 - Step 5: Solve for x
x = 304,782,442,512.83/728,368.04 - Step 6: Final answer
x = 418,445.66
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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.