Finding the Fourth Proportional to 1,127,570.08, 1,555,987.44 and 644,039.68
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Solution
The fourth proportional to 1,127,570.08, 1,555,987.44 and 644,039.68 is: 888,740.90
Step by Step Solution
- Step 1: Write the proportion equation
1,127,570.08 : 1,555,987.44 = 644,039.68 : x - Step 2: Convert to fraction form
1,127,570.08/1,555,987.44 = 644,039.68/x - Step 3: Cross multiply
1,127,570.08x = 1,555,987.44 × 644,039.68 - Step 4: Simplify right side
1,127,570.08x = 1,002,117,652,941.62 - Step 5: Solve for x
x = 1,002,117,652,941.62/1,127,570.08 - Step 6: Final answer
x = 888,740.90
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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.