Finding the Fourth Proportional to 1,126,478.34, 1,689,156.18 and 368,221.14
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Solution
The fourth proportional to 1,126,478.34, 1,689,156.18 and 368,221.14 is: 552,148.22
Step by Step Solution
- Step 1: Write the proportion equation
1,126,478.34 : 1,689,156.18 = 368,221.14 : x - Step 2: Convert to fraction form
1,126,478.34/1,689,156.18 = 368,221.14/x - Step 3: Cross multiply
1,126,478.34x = 1,689,156.18 × 368,221.14 - Step 4: Simplify right side
1,126,478.34x = 621,983,014,237.65 - Step 5: Solve for x
x = 621,983,014,237.65/1,126,478.34 - Step 6: Final answer
x = 552,148.22
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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.