Finding the Fourth Proportional to 626,865.68, 865,078.18 and 340,385.84
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Solution
The fourth proportional to 626,865.68, 865,078.18 and 340,385.84 is: 469,734.39
Step by Step Solution
- Step 1: Write the proportion equation
626,865.68 : 865,078.18 = 340,385.84 : x - Step 2: Convert to fraction form
626,865.68/865,078.18 = 340,385.84/x - Step 3: Cross multiply
626,865.68x = 865,078.18 × 340,385.84 - Step 4: Simplify right side
626,865.68x = 294,460,365,898.72 - Step 5: Solve for x
x = 294,460,365,898.72/626,865.68 - Step 6: Final answer
x = 469,734.39
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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.