Finding the Fourth Proportional to 939,515.10, 1,296,526.95 and 557,856.06
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Solution
The fourth proportional to 939,515.10, 1,296,526.95 and 557,856.06 is: 769,839.05
Step by Step Solution
- Step 1: Write the proportion equation
939,515.10 : 1,296,526.95 = 557,856.06 : x - Step 2: Convert to fraction form
939,515.10/1,296,526.95 = 557,856.06/x - Step 3: Cross multiply
939,515.10x = 1,296,526.95 × 557,856.06 - Step 4: Simplify right side
939,515.10x = 723,275,416,010.82 - Step 5: Solve for x
x = 723,275,416,010.82/939,515.10 - Step 6: Final answer
x = 769,839.05
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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.