Finding the Fourth Proportional to 725,818.64, 1,001,572.84 and 403,509.12
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Solution
The fourth proportional to 725,818.64, 1,001,572.84 and 403,509.12 is: 556,810.96
Step by Step Solution
- Step 1: Write the proportion equation
725,818.64 : 1,001,572.84 = 403,509.12 : x - Step 2: Convert to fraction form
725,818.64/1,001,572.84 = 403,509.12/x - Step 3: Cross multiply
725,818.64x = 1,001,572.84 × 403,509.12 - Step 4: Simplify right side
725,818.64x = 404,143,775,284.30 - Step 5: Solve for x
x = 404,143,775,284.30/725,818.64 - Step 6: Final answer
x = 556,810.96
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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.