Finding the Fourth Proportional to 747,649.20, 1,031,719.84 and 425,328.96
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Solution
The fourth proportional to 747,649.20, 1,031,719.84 and 425,328.96 is: 586,933.45
Step by Step Solution
- Step 1: Write the proportion equation
747,649.20 : 1,031,719.84 = 425,328.96 : x - Step 2: Convert to fraction form
747,649.20/1,031,719.84 = 425,328.96/x - Step 3: Cross multiply
747,649.20x = 1,031,719.84 × 425,328.96 - Step 4: Simplify right side
747,649.20x = 438,820,326,558.57 - Step 5: Solve for x
x = 438,820,326,558.57/747,649.20 - Step 6: Final answer
x = 586,933.45
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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.