Finding the Fourth Proportional to 989,765.72, 1,484,352.42 and 516,192.74
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Solution
The fourth proportional to 989,765.72, 1,484,352.42 and 516,192.74 is: 774,134.65
Step by Step Solution
- Step 1: Write the proportion equation
989,765.72 : 1,484,352.42 = 516,192.74 : x - Step 2: Convert to fraction form
989,765.72/1,484,352.42 = 516,192.74/x - Step 3: Cross multiply
989,765.72x = 1,484,352.42 × 516,192.74 - Step 4: Simplify right side
989,765.72x = 766,211,942,805.43 - Step 5: Solve for x
x = 766,211,942,805.43/989,765.72 - Step 6: Final answer
x = 774,134.65
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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.