Finding the Fourth Proportional to 745,257, 1,028,457.10 and 405,727.68
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Solution
The fourth proportional to 745,257, 1,028,457.10 and 405,727.68 is: 559,905.53
Step by Step Solution
- Step 1: Write the proportion equation
745,257 : 1,028,457.10 = 405,727.68 : x - Step 2: Convert to fraction form
745,257/1,028,457.10 = 405,727.68/x - Step 3: Cross multiply
745,257x = 1,028,457.10 × 405,727.68 - Step 4: Simplify right side
745,257x = 417,273,513,162.53 - Step 5: Solve for x
x = 417,273,513,162.53/745,257 - Step 6: Final answer
x = 559,905.53
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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.