Finding the Fourth Proportional to 1,888,447.98, 2,605,976.72 and 1,072,649.12
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Solution
The fourth proportional to 1,888,447.98, 2,605,976.72 and 1,072,649.12 is: 1,480,209.50
Step by Step Solution
- Step 1: Write the proportion equation
1,888,447.98 : 2,605,976.72 = 1,072,649.12 : x - Step 2: Convert to fraction form
1,888,447.98/2,605,976.72 = 1,072,649.12/x - Step 3: Cross multiply
1,888,447.98x = 2,605,976.72 × 1,072,649.12 - Step 4: Simplify right side
1,888,447.98x = 2,795,298,630,085.24 - Step 5: Solve for x
x = 2,795,298,630,085.24/1,888,447.98 - Step 6: Final answer
x = 1,480,209.50
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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.