Finding the Fourth Proportional to 616,411.39, 924,910.30 and 427,162.99
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Solution
The fourth proportional to 616,411.39, 924,910.30 and 427,162.99 is: 640,947.68
Step by Step Solution
- Step 1: Write the proportion equation
616,411.39 : 924,910.30 = 427,162.99 : x - Step 2: Convert to fraction form
616,411.39/924,910.30 = 427,162.99/x - Step 3: Cross multiply
616,411.39x = 924,910.30 × 427,162.99 - Step 4: Simplify right side
616,411.39x = 395,087,444,605.25 - Step 5: Solve for x
x = 395,087,444,605.25/616,411.39 - Step 6: Final answer
x = 640,947.68
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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.