Finding the Fourth Proportional to 745,110, 1,028,251.80 and 405,580.68
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Solution
The fourth proportional to 745,110, 1,028,251.80 and 405,580.68 is: 559,701.34
Step by Step Solution
- Step 1: Write the proportion equation
745,110 : 1,028,251.80 = 405,580.68 : x - Step 2: Convert to fraction form
745,110/1,028,251.80 = 405,580.68/x - Step 3: Cross multiply
745,110x = 1,028,251.80 × 405,580.68 - Step 4: Simplify right side
745,110x = 417,039,064,255.22 - Step 5: Solve for x
x = 417,039,064,255.22/745,110 - Step 6: Final answer
x = 559,701.34
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1.5x scale
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.