Finding the Fourth Proportional to 509,398.58, 702,973.41 and 318,523.70
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Solution
The fourth proportional to 509,398.58, 702,973.41 and 318,523.70 is: 439,564.81
Step by Step Solution
- Step 1: Write the proportion equation
509,398.58 : 702,973.41 = 318,523.70 : x - Step 2: Convert to fraction form
509,398.58/702,973.41 = 318,523.70/x - Step 3: Cross multiply
509,398.58x = 702,973.41 × 318,523.70 - Step 4: Simplify right side
509,398.58x = 223,913,691,554.82 - Step 5: Solve for x
x = 223,913,691,554.82/509,398.58 - Step 6: Final answer
x = 439,564.81
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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.