Finding the Fourth Proportional to 530,474.28, 732,063.84 and 288,763.80
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Solution
The fourth proportional to 530,474.28, 732,063.84 and 288,763.80 is: 398,499.12
Step by Step Solution
- Step 1: Write the proportion equation
530,474.28 : 732,063.84 = 288,763.80 : x - Step 2: Convert to fraction form
530,474.28/732,063.84 = 288,763.80/x - Step 3: Cross multiply
530,474.28x = 732,063.84 × 288,763.80 - Step 4: Simplify right side
530,474.28x = 211,393,536,280.99 - Step 5: Solve for x
x = 211,393,536,280.99/530,474.28 - Step 6: Final answer
x = 398,499.12
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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.