Finding the Fourth Proportional to 745,201.84, 1,028,373.40 and 405,669.28
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Solution
The fourth proportional to 745,201.84, 1,028,373.40 and 405,669.28 is: 559,820.81
Step by Step Solution
- Step 1: Write the proportion equation
745,201.84 : 1,028,373.40 = 405,669.28 : x - Step 2: Convert to fraction form
745,201.84/1,028,373.40 = 405,669.28/x - Step 3: Cross multiply
745,201.84x = 1,028,373.40 × 405,669.28 - Step 4: Simplify right side
745,201.84x = 417,179,496,749.15 - Step 5: Solve for x
x = 417,179,496,749.15/745,201.84 - Step 6: Final answer
x = 559,820.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.