Finding the Fourth Proportional to 725,980.74, 1,001,812.28 and 403,683.92
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Solution
The fourth proportional to 725,980.74, 1,001,812.28 and 403,683.92 is: 557,060.92
Step by Step Solution
- Step 1: Write the proportion equation
725,980.74 : 1,001,812.28 = 403,683.92 : x - Step 2: Convert to fraction form
725,980.74/1,001,812.28 = 403,683.92/x - Step 3: Cross multiply
725,980.74x = 1,001,812.28 × 403,683.92 - Step 4: Simplify right side
725,980.74x = 404,415,501,267.06 - Step 5: Solve for x
x = 404,415,501,267.06/725,980.74 - Step 6: Final answer
x = 557,060.92
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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.