Finding the Fourth Proportional to 691,798.71, 954,679.73 and 385,874.88
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Solution
The fourth proportional to 691,798.71, 954,679.73 and 385,874.88 is: 532,505.95
Step by Step Solution
- Step 1: Write the proportion equation
691,798.71 : 954,679.73 = 385,874.88 : x - Step 2: Convert to fraction form
691,798.71/954,679.73 = 385,874.88/x - Step 3: Cross multiply
691,798.71x = 954,679.73 × 385,874.88 - Step 4: Simplify right side
691,798.71x = 368,386,926,252.18 - Step 5: Solve for x
x = 368,386,926,252.18/691,798.71 - Step 6: Final answer
x = 532,505.95
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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.