Finding the Fourth Proportional to 745,270.86, 1,028,492.28 and 405,757.74
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Solution
The fourth proportional to 745,270.86, 1,028,492.28 and 405,757.74 is: 559,955.75
Step by Step Solution
- Step 1: Write the proportion equation
745,270.86 : 1,028,492.28 = 405,757.74 : x - Step 2: Convert to fraction form
745,270.86/1,028,492.28 = 405,757.74/x - Step 3: Cross multiply
745,270.86x = 1,028,492.28 × 405,757.74 - Step 4: Simplify right side
745,270.86x = 417,318,703,140.25 - Step 5: Solve for x
x = 417,318,703,140.25/745,270.86 - Step 6: Final answer
x = 559,955.75
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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.