Finding the Fourth Proportional to 747,602.21, 1,031,331.76 and 489,365.42
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Solution
The fourth proportional to 747,602.21, 1,031,331.76 and 489,365.42 is: 675,089.08
Step by Step Solution
- Step 1: Write the proportion equation
747,602.21 : 1,031,331.76 = 489,365.42 : x - Step 2: Convert to fraction form
747,602.21/1,031,331.76 = 489,365.42/x - Step 3: Cross multiply
747,602.21x = 1,031,331.76 × 489,365.42 - Step 4: Simplify right side
747,602.21x = 504,698,093,511.67 - Step 5: Solve for x
x = 504,698,093,511.67/747,602.21 - Step 6: Final answer
x = 675,089.08
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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.