Finding the Fourth Proportional to 745,303.92, 1,028,485.08 and 405,771.12
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Solution
The fourth proportional to 745,303.92, 1,028,485.08 and 405,771.12 is: 559,945.46
Step by Step Solution
- Step 1: Write the proportion equation
745,303.92 : 1,028,485.08 = 405,771.12 : x - Step 2: Convert to fraction form
745,303.92/1,028,485.08 = 405,771.12/x - Step 3: Cross multiply
745,303.92x = 1,028,485.08 × 405,771.12 - Step 4: Simplify right side
745,303.92x = 417,329,542,814.89 - Step 5: Solve for x
x = 417,329,542,814.89/745,303.92 - Step 6: Final answer
x = 559,945.46
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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.