Finding the Fourth Proportional to 1,292,778.36, 1,938,518.46 and 753,209.28
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Solution
The fourth proportional to 1,292,778.36, 1,938,518.46 and 753,209.28 is: 1,129,435.75
Step by Step Solution
- Step 1: Write the proportion equation
1,292,778.36 : 1,938,518.46 = 753,209.28 : x - Step 2: Convert to fraction form
1,292,778.36/1,938,518.46 = 753,209.28/x - Step 3: Cross multiply
1,292,778.36x = 1,938,518.46 × 753,209.28 - Step 4: Simplify right side
1,292,778.36x = 1,460,110,093,523.31 - Step 5: Solve for x
x = 1,460,110,093,523.31/1,292,778.36 - Step 6: Final answer
x = 1,129,435.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.