Finding the Fourth Proportional to 738,420.96, 1,018,930.24 and 432,270.24
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Solution
The fourth proportional to 738,420.96, 1,018,930.24 and 432,270.24 is: 596,479.84
Step by Step Solution
- Step 1: Write the proportion equation
738,420.96 : 1,018,930.24 = 432,270.24 : x - Step 2: Convert to fraction form
738,420.96/1,018,930.24 = 432,270.24/x - Step 3: Cross multiply
738,420.96x = 1,018,930.24 × 432,270.24 - Step 4: Simplify right side
738,420.96x = 440,453,219,388.06 - Step 5: Solve for x
x = 440,453,219,388.06/738,420.96 - Step 6: Final answer
x = 596,479.84
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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.