Finding the Fourth Proportional to 478,427.16, 717,641.75 and 449,197.91
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Solution
The fourth proportional to 478,427.16, 717,641.75 and 449,197.91 is: 673,797.80
Step by Step Solution
- Step 1: Write the proportion equation
478,427.16 : 717,641.75 = 449,197.91 : x - Step 2: Convert to fraction form
478,427.16/717,641.75 = 449,197.91/x - Step 3: Cross multiply
478,427.16x = 717,641.75 × 449,197.91 - Step 4: Simplify right side
478,427.16x = 322,363,168,394.54 - Step 5: Solve for x
x = 322,363,168,394.54/478,427.16 - Step 6: Final answer
x = 673,797.80
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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.