Finding the Fourth Proportional to 1,668,683.70, 2,503,025.55 and 828,875.70
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Solution
The fourth proportional to 1,668,683.70, 2,503,025.55 and 828,875.70 is: 1,243,313.55
Step by Step Solution
- Step 1: Write the proportion equation
1,668,683.70 : 2,503,025.55 = 828,875.70 : x - Step 2: Convert to fraction form
1,668,683.70/2,503,025.55 = 828,875.70/x - Step 3: Cross multiply
1,668,683.70x = 2,503,025.55 × 828,875.70 - Step 4: Simplify right side
1,668,683.70x = 2,074,697,054,874.13 - Step 5: Solve for x
x = 2,074,697,054,874.13/1,668,683.70 - Step 6: Final answer
x = 1,243,313.55
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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.