Finding the Fourth Proportional to 1,316,352.60, 1,975,257.50 and 642,439.48
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Solution
The fourth proportional to 1,316,352.60, 1,975,257.50 and 642,439.48 is: 964,014.81
Step by Step Solution
- Step 1: Write the proportion equation
1,316,352.60 : 1,975,257.50 = 642,439.48 : x - Step 2: Convert to fraction form
1,316,352.60/1,975,257.50 = 642,439.48/x - Step 3: Cross multiply
1,316,352.60x = 1,975,257.50 × 642,439.48 - Step 4: Simplify right side
1,316,352.60x = 1,268,983,401,166.10 - Step 5: Solve for x
x = 1,268,983,401,166.10/1,316,352.60 - Step 6: Final answer
x = 964,014.81
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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.