Finding the Fourth Proportional to 1,970,041.42, 2,718,539.98 and 1,143,051.13
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Solution
The fourth proportional to 1,970,041.42, 2,718,539.98 and 1,143,051.13 is: 1,577,342.57
Step by Step Solution
- Step 1: Write the proportion equation
1,970,041.42 : 2,718,539.98 = 1,143,051.13 : x - Step 2: Convert to fraction form
1,970,041.42/2,718,539.98 = 1,143,051.13/x - Step 3: Cross multiply
1,970,041.42x = 2,718,539.98 × 1,143,051.13 - Step 4: Simplify right side
1,970,041.42x = 3,107,430,196,089.18 - Step 5: Solve for x
x = 3,107,430,196,089.18/1,970,041.42 - Step 6: Final answer
x = 1,577,342.57
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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.