Finding the Fourth Proportional to 665,363.57, 917,245.70 and 474,044.81
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Solution
The fourth proportional to 665,363.57, 917,245.70 and 474,044.81 is: 653,500.70
Step by Step Solution
- Step 1: Write the proportion equation
665,363.57 : 917,245.70 = 474,044.81 : x - Step 2: Convert to fraction form
665,363.57/917,245.70 = 474,044.81/x - Step 3: Cross multiply
665,363.57x = 917,245.70 × 474,044.81 - Step 4: Simplify right side
665,363.57x = 434,815,556,623.36 - Step 5: Solve for x
x = 434,815,556,623.36/665,363.57 - Step 6: Final answer
x = 653,500.70
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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.