Finding the Fourth Proportional to 691,134.45, 1,036,701.68 and 292,225.65
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Solution
The fourth proportional to 691,134.45, 1,036,701.68 and 292,225.65 is: 438,338.48
Step by Step Solution
- Step 1: Write the proportion equation
691,134.45 : 1,036,701.68 = 292,225.65 : x - Step 2: Convert to fraction form
691,134.45/1,036,701.68 = 292,225.65/x - Step 3: Cross multiply
691,134.45x = 1,036,701.68 × 292,225.65 - Step 4: Simplify right side
691,134.45x = 302,950,822,294.09 - Step 5: Solve for x
x = 302,950,822,294.09/691,134.45 - Step 6: Final answer
x = 438,338.48
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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.