Finding the Fourth Proportional to 1,007,216.74, 1,389,913.76 and 548,319.58
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Solution
The fourth proportional to 1,007,216.74, 1,389,913.76 and 548,319.58 is: 756,656.33
Step by Step Solution
- Step 1: Write the proportion equation
1,007,216.74 : 1,389,913.76 = 548,319.58 : x - Step 2: Convert to fraction form
1,007,216.74/1,389,913.76 = 548,319.58/x - Step 3: Cross multiply
1,007,216.74x = 1,389,913.76 × 548,319.58 - Step 4: Simplify right side
1,007,216.74x = 762,116,927,015.44 - Step 5: Solve for x
x = 762,116,927,015.44/1,007,216.74 - Step 6: Final answer
x = 756,656.33
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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.