Finding the Fourth Proportional to 744,248.29, 1,027,031.64 and 421,980.19
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Solution
The fourth proportional to 744,248.29, 1,027,031.64 and 421,980.19 is: 582,315.09
Step by Step Solution
- Step 1: Write the proportion equation
744,248.29 : 1,027,031.64 = 421,980.19 : x - Step 2: Convert to fraction form
744,248.29/1,027,031.64 = 421,980.19/x - Step 3: Cross multiply
744,248.29x = 1,027,031.64 × 421,980.19 - Step 4: Simplify right side
744,248.29x = 433,387,006,583.21 - Step 5: Solve for x
x = 433,387,006,583.21/744,248.29 - Step 6: Final answer
x = 582,315.09
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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.