Finding the Fourth Proportional to 745,501.44, 1,028,793.60 and 405,962.40
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Solution
The fourth proportional to 745,501.44, 1,028,793.60 and 405,962.40 is: 560,228.99
Step by Step Solution
- Step 1: Write the proportion equation
745,501.44 : 1,028,793.60 = 405,962.40 : x - Step 2: Convert to fraction form
745,501.44/1,028,793.60 = 405,962.40/x - Step 3: Cross multiply
745,501.44x = 1,028,793.60 × 405,962.40 - Step 4: Simplify right side
745,501.44x = 417,651,518,960.64 - Step 5: Solve for x
x = 417,651,518,960.64/745,501.44 - Step 6: Final answer
x = 560,228.99
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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.