Finding the Fourth Proportional to 2,878,661.21, 4,319,486.22 and 1,174,055.09
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Solution
The fourth proportional to 2,878,661.21, 4,319,486.22 and 1,174,055.09 is: 1,761,692.12
Step by Step Solution
- Step 1: Write the proportion equation
2,878,661.21 : 4,319,486.22 = 1,174,055.09 : x - Step 2: Convert to fraction form
2,878,661.21/4,319,486.22 = 1,174,055.09/x - Step 3: Cross multiply
2,878,661.21x = 4,319,486.22 × 1,174,055.09 - Step 4: Simplify right side
2,878,661.21x = 5,071,314,762,175.08 - Step 5: Solve for x
x = 5,071,314,762,175.08/2,878,661.21 - Step 6: Final answer
x = 1,761,692.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.