Finding the Fourth Proportional to 989,780.24, 1,484,374.20 and 516,207.20
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Solution
The fourth proportional to 989,780.24, 1,484,374.20 and 516,207.20 is: 774,156.34
Step by Step Solution
- Step 1: Write the proportion equation
989,780.24 : 1,484,374.20 = 516,207.20 : x - Step 2: Convert to fraction form
989,780.24/1,484,374.20 = 516,207.20/x - Step 3: Cross multiply
989,780.24x = 1,484,374.20 × 516,207.20 - Step 4: Simplify right side
989,780.24x = 766,244,649,534.24 - Step 5: Solve for x
x = 766,244,649,534.24/989,780.24 - Step 6: Final answer
x = 774,156.34
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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.