Finding the Fourth Proportional to 861,656.76, 1,290,478.74 and 831,762.36
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Solution
The fourth proportional to 861,656.76, 1,290,478.74 and 831,762.36 is: 1,245,706.75
Step by Step Solution
- Step 1: Write the proportion equation
861,656.76 : 1,290,478.74 = 831,762.36 : x - Step 2: Convert to fraction form
861,656.76/1,290,478.74 = 831,762.36/x - Step 3: Cross multiply
861,656.76x = 1,290,478.74 × 831,762.36 - Step 4: Simplify right side
861,656.76x = 1,073,371,642,312.23 - Step 5: Solve for x
x = 1,073,371,642,312.23/861,656.76 - Step 6: Final answer
x = 1,245,706.75
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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.