Finding the Fourth Proportional to 742,533.12, 1,024,696.26 and 403,001.28
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Solution
The fourth proportional to 742,533.12, 1,024,696.26 and 403,001.28 is: 556,142.07
Step by Step Solution
- Step 1: Write the proportion equation
742,533.12 : 1,024,696.26 = 403,001.28 : x - Step 2: Convert to fraction form
742,533.12/1,024,696.26 = 403,001.28/x - Step 3: Cross multiply
742,533.12x = 1,024,696.26 × 403,001.28 - Step 4: Simplify right side
742,533.12x = 412,953,904,391.21 - Step 5: Solve for x
x = 412,953,904,391.21/742,533.12 - Step 6: Final answer
x = 556,142.07
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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.