Finding the Fourth Proportional to 530,339.70, 731,854.74 and 288,617.09
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Solution
The fourth proportional to 530,339.70, 731,854.74 and 288,617.09 is: 398,283.94
Step by Step Solution
- Step 1: Write the proportion equation
530,339.70 : 731,854.74 = 288,617.09 : x - Step 2: Convert to fraction form
530,339.70/731,854.74 = 288,617.09/x - Step 3: Cross multiply
530,339.70x = 731,854.74 × 288,617.09 - Step 4: Simplify right side
530,339.70x = 211,225,786,901.23 - Step 5: Solve for x
x = 211,225,786,901.23/530,339.70 - Step 6: Final answer
x = 398,283.94
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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.