Finding the Fourth Proportional to 748,381.88, 1,121,788.74 and 348,693.05
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Solution
The fourth proportional to 748,381.88, 1,121,788.74 and 348,693.05 is: 522,674.25
Step by Step Solution
- Step 1: Write the proportion equation
748,381.88 : 1,121,788.74 = 348,693.05 : x - Step 2: Convert to fraction form
748,381.88/1,121,788.74 = 348,693.05/x - Step 3: Cross multiply
748,381.88x = 1,121,788.74 × 348,693.05 - Step 4: Simplify right side
748,381.88x = 391,159,937,206.26 - Step 5: Solve for x
x = 391,159,937,206.26/748,381.88 - Step 6: Final answer
x = 522,674.25
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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.