Finding the Fourth Proportional to 879,995.75, 1,214,394.14 and 477,587.75
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Solution
The fourth proportional to 879,995.75, 1,214,394.14 and 477,587.75 is: 659,071.10
Step by Step Solution
- Step 1: Write the proportion equation
879,995.75 : 1,214,394.14 = 477,587.75 : x - Step 2: Convert to fraction form
879,995.75/1,214,394.14 = 477,587.75/x - Step 3: Cross multiply
879,995.75x = 1,214,394.14 × 477,587.75 - Step 4: Simplify right side
879,995.75x = 579,979,762,547.85 - Step 5: Solve for x
x = 579,979,762,547.85/879,995.75 - Step 6: Final answer
x = 659,071.10
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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.