Finding the Fourth Proportional to 659,972.70, 989,764.65 and 260,480.70
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Solution
The fourth proportional to 659,972.70, 989,764.65 and 260,480.70 is: 390,644.32
Step by Step Solution
- Step 1: Write the proportion equation
659,972.70 : 989,764.65 = 260,480.70 : x - Step 2: Convert to fraction form
659,972.70/989,764.65 = 260,480.70/x - Step 3: Cross multiply
659,972.70x = 989,764.65 × 260,480.70 - Step 4: Simplify right side
659,972.70x = 257,814,588,867.26 - Step 5: Solve for x
x = 257,814,588,867.26/659,972.70 - Step 6: Final answer
x = 390,644.32
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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.