Finding the Fourth Proportional to 518,793.64, 715,813.32 and 314,839.99
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Solution
The fourth proportional to 518,793.64, 715,813.32 and 314,839.99 is: 434,405.21
Step by Step Solution
- Step 1: Write the proportion equation
518,793.64 : 715,813.32 = 314,839.99 : x - Step 2: Convert to fraction form
518,793.64/715,813.32 = 314,839.99/x - Step 3: Cross multiply
518,793.64x = 715,813.32 × 314,839.99 - Step 4: Simplify right side
518,793.64x = 225,366,658,510.67 - Step 5: Solve for x
x = 225,366,658,510.67/518,793.64 - Step 6: Final answer
x = 434,405.21
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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.