Finding the Fourth Proportional to 879,888.72, 1,214,246.42 and 477,480.72
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Solution
The fourth proportional to 879,888.72, 1,214,246.42 and 477,480.72 is: 658,923.38
Step by Step Solution
- Step 1: Write the proportion equation
879,888.72 : 1,214,246.42 = 477,480.72 : x - Step 2: Convert to fraction form
879,888.72/1,214,246.42 = 477,480.72/x - Step 3: Cross multiply
879,888.72x = 1,214,246.42 × 477,480.72 - Step 4: Simplify right side
879,888.72x = 579,779,252,491.62 - Step 5: Solve for x
x = 579,779,252,491.62/879,888.72 - Step 6: Final answer
x = 658,923.38
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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.