Finding the Fourth Proportional to 530,288.37, 731,813.36 and 288,586.53
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Solution
The fourth proportional to 530,288.37, 731,813.36 and 288,586.53 is: 398,257.79
Step by Step Solution
- Step 1: Write the proportion equation
530,288.37 : 731,813.36 = 288,586.53 : x - Step 2: Convert to fraction form
530,288.37/731,813.36 = 288,586.53/x - Step 3: Cross multiply
530,288.37x = 731,813.36 × 288,586.53 - Step 4: Simplify right side
530,288.37x = 211,191,476,727.11 - Step 5: Solve for x
x = 211,191,476,727.11/530,288.37 - Step 6: Final answer
x = 398,257.79
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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.