Finding the Fourth Proportional to 1,130,589.36, 1,560,155.58 and 621,193.32
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Solution
The fourth proportional to 1,130,589.36, 1,560,155.58 and 621,193.32 is: 857,215.06
Step by Step Solution
- Step 1: Write the proportion equation
1,130,589.36 : 1,560,155.58 = 621,193.32 : x - Step 2: Convert to fraction form
1,130,589.36/1,560,155.58 = 621,193.32/x - Step 3: Cross multiply
1,130,589.36x = 1,560,155.58 × 621,193.32 - Step 4: Simplify right side
1,130,589.36x = 969,158,224,456.73 - Step 5: Solve for x
x = 969,158,224,456.73/1,130,589.36 - Step 6: Final answer
x = 857,215.06
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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.