Finding the Fourth Proportional to 745,237.71, 1,028,431.93 and 405,708.39
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Solution
The fourth proportional to 745,237.71, 1,028,431.93 and 405,708.39 is: 559,879.70
Step by Step Solution
- Step 1: Write the proportion equation
745,237.71 : 1,028,431.93 = 405,708.39 : x - Step 2: Convert to fraction form
745,237.71/1,028,431.93 = 405,708.39/x - Step 3: Cross multiply
745,237.71x = 1,028,431.93 × 405,708.39 - Step 4: Simplify right side
745,237.71x = 417,243,466,130.24 - Step 5: Solve for x
x = 417,243,466,130.24/745,237.71 - Step 6: Final answer
x = 559,879.70
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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.