Finding the Fourth Proportional to 455,281.32, 679,545.60 and 394,219.08
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Solution
The fourth proportional to 455,281.32, 679,545.60 and 394,219.08 is: 588,405.08
Step by Step Solution
- Step 1: Write the proportion equation
455,281.32 : 679,545.60 = 394,219.08 : x - Step 2: Convert to fraction form
455,281.32/679,545.60 = 394,219.08/x - Step 3: Cross multiply
455,281.32x = 679,545.60 × 394,219.08 - Step 4: Simplify right side
455,281.32x = 267,889,841,250.05 - Step 5: Solve for x
x = 267,889,841,250.05/455,281.32 - Step 6: Final answer
x = 588,405.08
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.