Finding the Fourth Proportional to 5,280,561.86, 7,286,923.35 and 3,242,977.70
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Solution
The fourth proportional to 5,280,561.86, 7,286,923.35 and 3,242,977.70 is: 4,475,154.45
Step by Step Solution
- Step 1: Write the proportion equation
5,280,561.86 : 7,286,923.35 = 3,242,977.70 : x - Step 2: Convert to fraction form
5,280,561.86/7,286,923.35 = 3,242,977.70/x - Step 3: Cross multiply
5,280,561.86x = 7,286,923.35 × 3,242,977.70 - Step 4: Simplify right side
5,280,561.86x = 23,631,329,889,224.68 - Step 5: Solve for x
x = 23,631,329,889,224.68/5,280,561.86 - Step 6: Final answer
x = 4,475,154.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.