Finding the Fourth Proportional to 346,695.40, 520,043.10 and 283,709.80
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Solution
The fourth proportional to 346,695.40, 520,043.10 and 283,709.80 is: 425,564.70
Step by Step Solution
- Step 1: Write the proportion equation
346,695.40 : 520,043.10 = 283,709.80 : x - Step 2: Convert to fraction form
346,695.40/520,043.10 = 283,709.80/x - Step 3: Cross multiply
346,695.40x = 520,043.10 × 283,709.80 - Step 4: Simplify right side
346,695.40x = 147,541,323,892.38 - Step 5: Solve for x
x = 147,541,323,892.38/346,695.40 - Step 6: Final answer
x = 425,564.70
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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.