Finding the Fourth Proportional to 742,663.96, 1,024,875.39 and 403,132.21
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Solution
The fourth proportional to 742,663.96, 1,024,875.39 and 403,132.21 is: 556,321.97
Step by Step Solution
- Step 1: Write the proportion equation
742,663.96 : 1,024,875.39 = 403,132.21 : x - Step 2: Convert to fraction form
742,663.96/1,024,875.39 = 403,132.21/x - Step 3: Cross multiply
742,663.96x = 1,024,875.39 × 403,132.21 - Step 4: Simplify right side
742,663.96x = 413,160,280,945.31 - Step 5: Solve for x
x = 413,160,280,945.31/742,663.96 - Step 6: Final answer
x = 556,321.97
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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.