Finding the Fourth Proportional to 918,351.70, 1,377,167.10 and 349,430.65
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Solution
The fourth proportional to 918,351.70, 1,377,167.10 and 349,430.65 is: 524,008.82
Step by Step Solution
- Step 1: Write the proportion equation
918,351.70 : 1,377,167.10 = 349,430.65 : x - Step 2: Convert to fraction form
918,351.70/1,377,167.10 = 349,430.65/x - Step 3: Cross multiply
918,351.70x = 1,377,167.10 × 349,430.65 - Step 4: Simplify right side
918,351.70x = 481,224,394,911.62 - Step 5: Solve for x
x = 481,224,394,911.62/918,351.70 - Step 6: Final answer
x = 524,008.82
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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.