Finding the Fourth Proportional to 747,331.21, 1,031,373.49 and 425,071.29
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Solution
The fourth proportional to 747,331.21, 1,031,373.49 and 425,071.29 is: 586,630.48
Step by Step Solution
- Step 1: Write the proportion equation
747,331.21 : 1,031,373.49 = 425,071.29 : x - Step 2: Convert to fraction form
747,331.21/1,031,373.49 = 425,071.29/x - Step 3: Cross multiply
747,331.21x = 1,031,373.49 × 425,071.29 - Step 4: Simplify right side
747,331.21x = 438,407,259,866.10 - Step 5: Solve for x
x = 438,407,259,866.10/747,331.21 - Step 6: Final answer
x = 586,630.48
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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.