Finding the Fourth Proportional to 524,539.80, 786,809.70 and 512,875.80
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Solution
The fourth proportional to 524,539.80, 786,809.70 and 512,875.80 is: 769,313.70
Step by Step Solution
- Step 1: Write the proportion equation
524,539.80 : 786,809.70 = 512,875.80 : x - Step 2: Convert to fraction form
524,539.80/786,809.70 = 512,875.80/x - Step 3: Cross multiply
524,539.80x = 786,809.70 × 512,875.80 - Step 4: Simplify right side
524,539.80x = 403,535,654,335.26 - Step 5: Solve for x
x = 403,535,654,335.26/524,539.80 - Step 6: Final answer
x = 769,313.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.