Finding the Fourth Proportional to 725,699.34, 1,001,466.24 and 403,406.62
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Solution
The fourth proportional to 725,699.34, 1,001,466.24 and 403,406.62 is: 556,701.78
Step by Step Solution
- Step 1: Write the proportion equation
725,699.34 : 1,001,466.24 = 403,406.62 : x - Step 2: Convert to fraction form
725,699.34/1,001,466.24 = 403,406.62/x - Step 3: Cross multiply
725,699.34x = 1,001,466.24 × 403,406.62 - Step 4: Simplify right side
725,699.34x = 403,998,110,922.51 - Step 5: Solve for x
x = 403,998,110,922.51/725,699.34 - Step 6: Final answer
x = 556,701.78
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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.