Finding the Fourth Proportional to 913,431.05, 1,260,525.57 and 505,533.68
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Solution
The fourth proportional to 913,431.05, 1,260,525.57 and 505,533.68 is: 697,631.34
Step by Step Solution
- Step 1: Write the proportion equation
913,431.05 : 1,260,525.57 = 505,533.68 : x - Step 2: Convert to fraction form
913,431.05/1,260,525.57 = 505,533.68/x - Step 3: Cross multiply
913,431.05x = 1,260,525.57 × 505,533.68 - Step 4: Simplify right side
913,431.05x = 637,238,130,136.20 - Step 5: Solve for x
x = 637,238,130,136.20/913,431.05 - Step 6: Final answer
x = 697,631.34
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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.