Finding the Fourth Proportional to 524,400.80, 785,434.80 and 431,088.80
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Solution
The fourth proportional to 524,400.80, 785,434.80 and 431,088.80 is: 645,674.35
Step by Step Solution
- Step 1: Write the proportion equation
524,400.80 : 785,434.80 = 431,088.80 : x - Step 2: Convert to fraction form
524,400.80/785,434.80 = 431,088.80/x - Step 3: Cross multiply
524,400.80x = 785,434.80 × 431,088.80 - Step 4: Simplify right side
524,400.80x = 338,592,145,410.24 - Step 5: Solve for x
x = 338,592,145,410.24/524,400.80 - Step 6: Final answer
x = 645,674.35
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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.