Finding the Fourth Proportional to 747,633.11, 1,031,720.49 and 425,336.31
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Solution
The fourth proportional to 747,633.11, 1,031,720.49 and 425,336.31 is: 586,956.60
Step by Step Solution
- Step 1: Write the proportion equation
747,633.11 : 1,031,720.49 = 425,336.31 : x - Step 2: Convert to fraction form
747,633.11/1,031,720.49 = 425,336.31/x - Step 3: Cross multiply
747,633.11x = 1,031,720.49 × 425,336.31 - Step 4: Simplify right side
747,633.11x = 438,828,186,167.99 - Step 5: Solve for x
x = 438,828,186,167.99/747,633.11 - Step 6: Final answer
x = 586,956.60
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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.