Finding the Fourth Proportional to 872,734.16, 1,300,541.86 and 865,385.84
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Solution
The fourth proportional to 872,734.16, 1,300,541.86 and 865,385.84 is: 1,289,591.45
Step by Step Solution
- Step 1: Write the proportion equation
872,734.16 : 1,300,541.86 = 865,385.84 : x - Step 2: Convert to fraction form
872,734.16/1,300,541.86 = 865,385.84/x - Step 3: Cross multiply
872,734.16x = 1,300,541.86 × 865,385.84 - Step 4: Simplify right side
872,734.16x = 1,125,470,509,971.26 - Step 5: Solve for x
x = 1,125,470,509,971.26/872,734.16 - Step 6: Final answer
x = 1,289,591.45
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.