Finding the Fourth Proportional to 1,888,120.58, 2,605,582.08 and 1,028,681.51
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Solution
The fourth proportional to 1,888,120.58, 2,605,582.08 and 1,028,681.51 is: 1,419,567.23
Step by Step Solution
- Step 1: Write the proportion equation
1,888,120.58 : 2,605,582.08 = 1,028,681.51 : x - Step 2: Convert to fraction form
1,888,120.58/2,605,582.08 = 1,028,681.51/x - Step 3: Cross multiply
1,888,120.58x = 2,605,582.08 × 1,028,681.51 - Step 4: Simplify right side
1,888,120.58x = 2,680,314,095,455.43 - Step 5: Solve for x
x = 2,680,314,095,455.43/1,888,120.58 - Step 6: Final answer
x = 1,419,567.23
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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.