Finding the Fourth Proportional to 418,962.24, 628,541.76 and 138,479.46
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Solution
The fourth proportional to 418,962.24, 628,541.76 and 138,479.46 is: 207,751.71
Step by Step Solution
- Step 1: Write the proportion equation
418,962.24 : 628,541.76 = 138,479.46 : x - Step 2: Convert to fraction form
418,962.24/628,541.76 = 138,479.46/x - Step 3: Cross multiply
418,962.24x = 628,541.76 × 138,479.46 - Step 4: Simplify right side
418,962.24x = 87,040,123,512.25 - Step 5: Solve for x
x = 87,040,123,512.25/418,962.24 - Step 6: Final answer
x = 207,751.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.