Finding the Fourth Proportional to 1,570,029.21, 2,166,632.10 and 881,730.09
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Solution
The fourth proportional to 1,570,029.21, 2,166,632.10 and 881,730.09 is: 1,216,782.91
Step by Step Solution
- Step 1: Write the proportion equation
1,570,029.21 : 2,166,632.10 = 881,730.09 : x - Step 2: Convert to fraction form
1,570,029.21/2,166,632.10 = 881,730.09/x - Step 3: Cross multiply
1,570,029.21x = 2,166,632.10 × 881,730.09 - Step 4: Simplify right side
1,570,029.21x = 1,910,384,716,529.89 - Step 5: Solve for x
x = 1,910,384,716,529.89/1,570,029.21 - Step 6: Final answer
x = 1,216,782.91
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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.