Finding the Fourth Proportional to 1,319,156.65, 1,820,177.39 and 828,842.12
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Solution
The fourth proportional to 1,319,156.65, 1,820,177.39 and 828,842.12 is: 1,143,639.53
Step by Step Solution
- Step 1: Write the proportion equation
1,319,156.65 : 1,820,177.39 = 828,842.12 : x - Step 2: Convert to fraction form
1,319,156.65/1,820,177.39 = 828,842.12/x - Step 3: Cross multiply
1,319,156.65x = 1,820,177.39 × 828,842.12 - Step 4: Simplify right side
1,319,156.65x = 1,508,639,686,500.55 - Step 5: Solve for x
x = 1,508,639,686,500.55/1,319,156.65 - Step 6: Final answer
x = 1,143,639.53
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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.