Finding the Fourth Proportional to 917,579.70, 1,376,369.55 and 917,579.70
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Solution
The fourth proportional to 917,579.70, 1,376,369.55 and 917,579.70 is: 1,376,369.55
Step by Step Solution
- Step 1: Write the proportion equation
917,579.70 : 1,376,369.55 = 917,579.70 : x - Step 2: Convert to fraction form
917,579.70/1,376,369.55 = 917,579.70/x - Step 3: Cross multiply
917,579.70x = 1,376,369.55 × 917,579.70 - Step 4: Simplify right side
917,579.70x = 1,262,928,758,778.14 - Step 5: Solve for x
x = 1,262,928,758,778.14/917,579.70 - Step 6: Final answer
x = 1,376,369.55
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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.