Finding the Fourth Proportional to 747,528.60, 1,031,230.80 and 543,262.80
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Solution
The fourth proportional to 747,528.60, 1,031,230.80 and 543,262.80 is: 749,442.00
Step by Step Solution
- Step 1: Write the proportion equation
747,528.60 : 1,031,230.80 = 543,262.80 : x - Step 2: Convert to fraction form
747,528.60/1,031,230.80 = 543,262.80/x - Step 3: Cross multiply
747,528.60x = 1,031,230.80 × 543,262.80 - Step 4: Simplify right side
747,528.60x = 560,229,331,854.24 - Step 5: Solve for x
x = 560,229,331,854.24/747,528.60 - Step 6: Final answer
x = 749,442.00
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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.