Finding the Fourth Proportional to 1,888,776.40, 2,606,435.36 and 1,029,318.20
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Solution
The fourth proportional to 1,888,776.40, 2,606,435.36 and 1,029,318.20 is: 1,420,417.66
Step by Step Solution
- Step 1: Write the proportion equation
1,888,776.40 : 2,606,435.36 = 1,029,318.20 : x - Step 2: Convert to fraction form
1,888,776.40/2,606,435.36 = 1,029,318.20/x - Step 3: Cross multiply
1,888,776.40x = 2,606,435.36 × 1,029,318.20 - Step 4: Simplify right side
1,888,776.40x = 2,682,851,353,171.55 - Step 5: Solve for x
x = 2,682,851,353,171.55/1,888,776.40 - Step 6: Final answer
x = 1,420,417.66
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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.