Finding the Fourth Proportional to 1,918,371.40, 2,647,346.94 and 1,058,925.49
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Solution
The fourth proportional to 1,918,371.40, 2,647,346.94 and 1,058,925.49 is: 1,461,314.09
Step by Step Solution
- Step 1: Write the proportion equation
1,918,371.40 : 2,647,346.94 = 1,058,925.49 : x - Step 2: Convert to fraction form
1,918,371.40/2,647,346.94 = 1,058,925.49/x - Step 3: Cross multiply
1,918,371.40x = 2,647,346.94 × 1,058,925.49 - Step 4: Simplify right side
1,918,371.40x = 2,803,343,155,639.50 - Step 5: Solve for x
x = 2,803,343,155,639.50/1,918,371.40 - Step 6: Final answer
x = 1,461,314.09
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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.