Finding the Fourth Proportional to 578,725.19, 868,172.36 and 278,959.26
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Solution
The fourth proportional to 578,725.19, 868,172.36 and 278,959.26 is: 418,479.66
Step by Step Solution
- Step 1: Write the proportion equation
578,725.19 : 868,172.36 = 278,959.26 : x - Step 2: Convert to fraction form
578,725.19/868,172.36 = 278,959.26/x - Step 3: Cross multiply
578,725.19x = 868,172.36 × 278,959.26 - Step 4: Simplify right side
578,725.19x = 242,184,719,098.05 - Step 5: Solve for x
x = 242,184,719,098.05/578,725.19 - Step 6: Final answer
x = 418,479.66
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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.