Finding the Fourth Proportional to 1,915,297.04, 2,643,127.80 and 1,055,888.12
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Solution
The fourth proportional to 1,915,297.04, 2,643,127.80 and 1,055,888.12 is: 1,457,135.47
Step by Step Solution
- Step 1: Write the proportion equation
1,915,297.04 : 2,643,127.80 = 1,055,888.12 : x - Step 2: Convert to fraction form
1,915,297.04/2,643,127.80 = 1,055,888.12/x - Step 3: Cross multiply
1,915,297.04x = 2,643,127.80 × 1,055,888.12 - Step 4: Simplify right side
1,915,297.04x = 2,790,847,243,661.74 - Step 5: Solve for x
x = 2,790,847,243,661.74/1,915,297.04 - Step 6: Final answer
x = 1,457,135.47
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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.