Finding the Fourth Proportional to 1,219,728.91, 1,683,250.25 and 710,464.09
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Solution
The fourth proportional to 1,219,728.91, 1,683,250.25 and 710,464.09 is: 980,454.63
Step by Step Solution
- Step 1: Write the proportion equation
1,219,728.91 : 1,683,250.25 = 710,464.09 : x - Step 2: Convert to fraction form
1,219,728.91/1,683,250.25 = 710,464.09/x - Step 3: Cross multiply
1,219,728.91x = 1,683,250.25 × 710,464.09 - Step 4: Simplify right side
1,219,728.91x = 1,195,888,857,108.52 - Step 5: Solve for x
x = 1,195,888,857,108.52/1,219,728.91 - Step 6: Final answer
x = 980,454.63
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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.