Finding the Fourth Proportional to 487,515.08, 731,445.82 and 217,618.76
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Solution
The fourth proportional to 487,515.08, 731,445.82 and 217,618.76 is: 326,505.45
Step by Step Solution
- Step 1: Write the proportion equation
487,515.08 : 731,445.82 = 217,618.76 : x - Step 2: Convert to fraction form
487,515.08/731,445.82 = 217,618.76/x - Step 3: Cross multiply
487,515.08x = 731,445.82 × 217,618.76 - Step 4: Simplify right side
487,515.08x = 159,176,332,355.58 - Step 5: Solve for x
x = 159,176,332,355.58/487,515.08 - Step 6: Final answer
x = 326,505.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.