Finding the Fourth Proportional to 1,918,373.40, 2,647,349.70 and 1,058,927.49
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Solution
The fourth proportional to 1,918,373.40, 2,647,349.70 and 1,058,927.49 is: 1,461,316.85
Step by Step Solution
- Step 1: Write the proportion equation
1,918,373.40 : 2,647,349.70 = 1,058,927.49 : x - Step 2: Convert to fraction form
1,918,373.40/2,647,349.70 = 1,058,927.49/x - Step 3: Cross multiply
1,918,373.40x = 2,647,349.70 × 1,058,927.49 - Step 4: Simplify right side
1,918,373.40x = 2,803,351,372,973.25 - Step 5: Solve for x
x = 2,803,351,372,973.25/1,918,373.40 - Step 6: Final answer
x = 1,461,316.85
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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.