Finding the Fourth Proportional to 725,405.34, 1,001,083.64 and 403,129.02
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Solution
The fourth proportional to 725,405.34, 1,001,083.64 and 403,129.02 is: 556,331.54
Step by Step Solution
- Step 1: Write the proportion equation
725,405.34 : 1,001,083.64 = 403,129.02 : x - Step 2: Convert to fraction form
725,405.34/1,001,083.64 = 403,129.02/x - Step 3: Cross multiply
725,405.34x = 1,001,083.64 × 403,129.02 - Step 4: Simplify right side
725,405.34x = 403,565,866,731.23 - Step 5: Solve for x
x = 403,565,866,731.23/725,405.34 - Step 6: Final answer
x = 556,331.54
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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.