Finding the Fourth Proportional to 498,566.99, 687,998.54 and 283,686.95
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Solution
The fourth proportional to 498,566.99, 687,998.54 and 283,686.95 is: 391,474.39
Step by Step Solution
- Step 1: Write the proportion equation
498,566.99 : 687,998.54 = 283,686.95 : x - Step 2: Convert to fraction form
498,566.99/687,998.54 = 283,686.95/x - Step 3: Cross multiply
498,566.99x = 687,998.54 × 283,686.95 - Step 4: Simplify right side
498,566.99x = 195,176,205,998.62 - Step 5: Solve for x
x = 195,176,205,998.62/498,566.99 - Step 6: Final answer
x = 391,474.39
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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.