Finding the Fourth Proportional to 917,125.80, 1,375,688.70 and 806,533.80
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Solution
The fourth proportional to 917,125.80, 1,375,688.70 and 806,533.80 is: 1,209,800.70
Step by Step Solution
- Step 1: Write the proportion equation
917,125.80 : 1,375,688.70 = 806,533.80 : x - Step 2: Convert to fraction form
917,125.80/1,375,688.70 = 806,533.80/x - Step 3: Cross multiply
917,125.80x = 1,375,688.70 × 806,533.80 - Step 4: Simplify right side
917,125.80x = 1,109,539,434,828.06 - Step 5: Solve for x
x = 1,109,539,434,828.06/917,125.80 - Step 6: Final answer
x = 1,209,800.70
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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.