Finding the Fourth Proportional to 1,240,290.68, 1,707,641.90 and 1,058,272.14
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Solution
The fourth proportional to 1,240,290.68, 1,707,641.90 and 1,058,272.14 is: 1,457,037.35
Step by Step Solution
- Step 1: Write the proportion equation
1,240,290.68 : 1,707,641.90 = 1,058,272.14 : x - Step 2: Convert to fraction form
1,240,290.68/1,707,641.90 = 1,058,272.14/x - Step 3: Cross multiply
1,240,290.68x = 1,707,641.90 × 1,058,272.14 - Step 4: Simplify right side
1,240,290.68x = 1,807,149,842,575.31 - Step 5: Solve for x
x = 1,807,149,842,575.31/1,240,290.68 - Step 6: Final answer
x = 1,457,037.35
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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.