Finding the Fourth Proportional to 742,689.24, 1,024,908.30 and 403,154.52
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Solution
The fourth proportional to 742,689.24, 1,024,908.30 and 403,154.52 is: 556,351.69
Step by Step Solution
- Step 1: Write the proportion equation
742,689.24 : 1,024,908.30 = 403,154.52 : x - Step 2: Convert to fraction form
742,689.24/1,024,908.30 = 403,154.52/x - Step 3: Cross multiply
742,689.24x = 1,024,908.30 × 403,154.52 - Step 4: Simplify right side
742,689.24x = 413,196,413,730.52 - Step 5: Solve for x
x = 413,196,413,730.52/742,689.24 - Step 6: Final answer
x = 556,351.69
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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.