Finding the Fourth Proportional to 530,289.08, 731,814.18 and 288,586.95
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Solution
The fourth proportional to 530,289.08, 731,814.18 and 288,586.95 is: 398,258.29
Step by Step Solution
- Step 1: Write the proportion equation
530,289.08 : 731,814.18 = 288,586.95 : x - Step 2: Convert to fraction form
530,289.08/731,814.18 = 288,586.95/x - Step 3: Cross multiply
530,289.08x = 731,814.18 × 288,586.95 - Step 4: Simplify right side
530,289.08x = 211,192,022,172.95 - Step 5: Solve for x
x = 211,192,022,172.95/530,289.08 - Step 6: Final answer
x = 398,258.29
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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.