Finding the Fourth Proportional to 1,352,967.68, 1,867,109.12 and 816,320
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Solution
The fourth proportional to 1,352,967.68, 1,867,109.12 and 816,320 is: 1,126,529.88
Step by Step Solution
- Step 1: Write the proportion equation
1,352,967.68 : 1,867,109.12 = 816,320 : x - Step 2: Convert to fraction form
1,352,967.68/1,867,109.12 = 816,320/x - Step 3: Cross multiply
1,352,967.68x = 1,867,109.12 × 816,320 - Step 4: Simplify right side
1,352,967.68x = 1,524,158,516,838.40 - Step 5: Solve for x
x = 1,524,158,516,838.40/1,352,967.68 - Step 6: Final answer
x = 1,126,529.88
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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.