Finding the Fourth Proportional to 487,219.67, 672,365.84 and 272,368.79
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Solution
The fourth proportional to 487,219.67, 672,365.84 and 272,368.79 is: 375,870.43
Step by Step Solution
- Step 1: Write the proportion equation
487,219.67 : 672,365.84 = 272,368.79 : x - Step 2: Convert to fraction form
487,219.67/672,365.84 = 272,368.79/x - Step 3: Cross multiply
487,219.67x = 672,365.84 × 272,368.79 - Step 4: Simplify right side
487,219.67x = 183,131,465,554.46 - Step 5: Solve for x
x = 183,131,465,554.46/487,219.67 - Step 6: Final answer
x = 375,870.43
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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.