Finding the Fourth Proportional to 663,407.19, 915,502.19 and 376,927.65
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Solution
The fourth proportional to 663,407.19, 915,502.19 and 376,927.65 is: 520,160.31
Step by Step Solution
- Step 1: Write the proportion equation
663,407.19 : 915,502.19 = 376,927.65 : x - Step 2: Convert to fraction form
663,407.19/915,502.19 = 376,927.65/x - Step 3: Cross multiply
663,407.19x = 915,502.19 × 376,927.65 - Step 4: Simplify right side
663,407.19x = 345,078,087,161.92 - Step 5: Solve for x
x = 345,078,087,161.92/663,407.19 - Step 6: Final answer
x = 520,160.31
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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.