Finding the Fourth Proportional to 989,723.70, 1,484,585.55 and 753,527.70
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Solution
The fourth proportional to 989,723.70, 1,484,585.55 and 753,527.70 is: 1,130,291.55
Step by Step Solution
- Step 1: Write the proportion equation
989,723.70 : 1,484,585.55 = 753,527.70 : x - Step 2: Convert to fraction form
989,723.70/1,484,585.55 = 753,527.70/x - Step 3: Cross multiply
989,723.70x = 1,484,585.55 × 753,527.70 - Step 4: Simplify right side
989,723.70x = 1,118,676,334,944.73 - Step 5: Solve for x
x = 1,118,676,334,944.73/989,723.70 - Step 6: Final answer
x = 1,130,291.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.