Finding the Fourth Proportional to 771,678.99, 1,064,924.46 and 427,522.23
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Solution
The fourth proportional to 771,678.99, 1,064,924.46 and 427,522.23 is: 589,984.81
Step by Step Solution
- Step 1: Write the proportion equation
771,678.99 : 1,064,924.46 = 427,522.23 : x - Step 2: Convert to fraction form
771,678.99/1,064,924.46 = 427,522.23/x - Step 3: Cross multiply
771,678.99x = 1,064,924.46 × 427,522.23 - Step 4: Simplify right side
771,678.99x = 455,278,879,920.75 - Step 5: Solve for x
x = 455,278,879,920.75/771,678.99 - Step 6: Final answer
x = 589,984.81
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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.