Finding the Fourth Proportional to 742,951.92, 1,025,277.84 and 403,420.26
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Solution
The fourth proportional to 742,951.92, 1,025,277.84 and 403,420.26 is: 556,722.23
Step by Step Solution
- Step 1: Write the proportion equation
742,951.92 : 1,025,277.84 = 403,420.26 : x - Step 2: Convert to fraction form
742,951.92/1,025,277.84 = 403,420.26/x - Step 3: Cross multiply
742,951.92x = 1,025,277.84 × 403,420.26 - Step 4: Simplify right side
742,951.92x = 413,617,852,785.04 - Step 5: Solve for x
x = 413,617,852,785.04/742,951.92 - Step 6: Final answer
x = 556,722.23
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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.