Finding the Fourth Proportional to 903,156.11, 1,245,149.69 and 717,503.54
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Solution
The fourth proportional to 903,156.11, 1,245,149.69 and 717,503.54 is: 989,196.99
Step by Step Solution
- Step 1: Write the proportion equation
903,156.11 : 1,245,149.69 = 717,503.54 : x - Step 2: Convert to fraction form
903,156.11/1,245,149.69 = 717,503.54/x - Step 3: Cross multiply
903,156.11x = 1,245,149.69 × 717,503.54 - Step 4: Simplify right side
903,156.11x = 893,399,300,591.64 - Step 5: Solve for x
x = 893,399,300,591.64/903,156.11 - Step 6: Final answer
x = 989,196.99
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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.