Finding the Fourth Proportional to 1,570,302.70, 2,355,454.05 and 1,313,439.55
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Solution
The fourth proportional to 1,570,302.70, 2,355,454.05 and 1,313,439.55 is: 1,970,159.33
Step by Step Solution
- Step 1: Write the proportion equation
1,570,302.70 : 2,355,454.05 = 1,313,439.55 : x - Step 2: Convert to fraction form
1,570,302.70/2,355,454.05 = 1,313,439.55/x - Step 3: Cross multiply
1,570,302.70x = 2,355,454.05 × 1,313,439.55 - Step 4: Simplify right side
1,570,302.70x = 3,093,746,507,477.68 - Step 5: Solve for x
x = 3,093,746,507,477.68/1,570,302.70 - Step 6: Final answer
x = 1,970,159.33
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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.