Finding the Fourth Proportional to 498,870.41, 688,439.99 and 272,517.53
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Solution
The fourth proportional to 498,870.41, 688,439.99 and 272,517.53 is: 376,073.55
Step by Step Solution
- Step 1: Write the proportion equation
498,870.41 : 688,439.99 = 272,517.53 : x - Step 2: Convert to fraction form
498,870.41/688,439.99 = 272,517.53/x - Step 3: Cross multiply
498,870.41x = 688,439.99 × 272,517.53 - Step 4: Simplify right side
498,870.41x = 187,611,962,867.12 - Step 5: Solve for x
x = 187,611,962,867.12/498,870.41 - Step 6: Final answer
x = 376,073.55
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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.