Finding the Fourth Proportional to 747,442.62, 1,031,504.36 and 420,867.90
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Solution
The fourth proportional to 747,442.62, 1,031,504.36 and 420,867.90 is: 580,816.59
Step by Step Solution
- Step 1: Write the proportion equation
747,442.62 : 1,031,504.36 = 420,867.90 : x - Step 2: Convert to fraction form
747,442.62/1,031,504.36 = 420,867.90/x - Step 3: Cross multiply
747,442.62x = 1,031,504.36 × 420,867.90 - Step 4: Simplify right side
747,442.62x = 434,127,071,729.71 - Step 5: Solve for x
x = 434,127,071,729.71/747,442.62 - Step 6: Final answer
x = 580,816.59
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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.