Finding the Fourth Proportional to 789,547.28, 1,089,679.08 and 449,937.68
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Solution
The fourth proportional to 789,547.28, 1,089,679.08 and 449,937.68 is: 620,973.17
Step by Step Solution
- Step 1: Write the proportion equation
789,547.28 : 1,089,679.08 = 449,937.68 : x - Step 2: Convert to fraction form
789,547.28/1,089,679.08 = 449,937.68/x - Step 3: Cross multiply
789,547.28x = 1,089,679.08 × 449,937.68 - Step 4: Simplify right side
789,547.28x = 490,287,677,199.73 - Step 5: Solve for x
x = 490,287,677,199.73/789,547.28 - Step 6: Final answer
x = 620,973.17
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.