Finding the Fourth Proportional to 778,215.70, 1,166,230.05 and 618,564.70
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Solution
The fourth proportional to 778,215.70, 1,166,230.05 and 618,564.70 is: 926,977.88
Step by Step Solution
- Step 1: Write the proportion equation
778,215.70 : 1,166,230.05 = 618,564.70 : x - Step 2: Convert to fraction form
778,215.70/1,166,230.05 = 618,564.70/x - Step 3: Cross multiply
778,215.70x = 1,166,230.05 × 618,564.70 - Step 4: Simplify right side
778,215.70x = 721,388,741,009.24 - Step 5: Solve for x
x = 721,388,741,009.24/778,215.70 - Step 6: Final answer
x = 926,977.88
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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.