Finding the Fourth Proportional to 1,878,157.08, 2,589,802.68 and 1,395,617.40
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Solution
The fourth proportional to 1,878,157.08, 2,589,802.68 and 1,395,617.40 is: 1,924,425.66
Step by Step Solution
- Step 1: Write the proportion equation
1,878,157.08 : 2,589,802.68 = 1,395,617.40 : x - Step 2: Convert to fraction form
1,878,157.08/2,589,802.68 = 1,395,617.40/x - Step 3: Cross multiply
1,878,157.08x = 2,589,802.68 × 1,395,617.40 - Step 4: Simplify right side
1,878,157.08x = 3,614,373,682,774.63 - Step 5: Solve for x
x = 3,614,373,682,774.63/1,878,157.08 - Step 6: Final answer
x = 1,924,425.66
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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.