Finding the Fourth Proportional to 2,031,415.26, 2,803,345.11 and 1,113,649.50
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Solution
The fourth proportional to 2,031,415.26, 2,803,345.11 and 1,113,649.50 is: 1,536,831.95
Step by Step Solution
- Step 1: Write the proportion equation
2,031,415.26 : 2,803,345.11 = 1,113,649.50 : x - Step 2: Convert to fraction form
2,031,415.26/2,803,345.11 = 1,113,649.50/x - Step 3: Cross multiply
2,031,415.26x = 2,803,345.11 × 1,113,649.50 - Step 4: Simplify right side
2,031,415.26x = 3,121,943,880,078.95 - Step 5: Solve for x
x = 3,121,943,880,078.95/2,031,415.26 - Step 6: Final answer
x = 1,536,831.95
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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.