Finding the Fourth Proportional to 2,209,511.79, 3,048,669.08 and 1,291,563.50
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Solution
The fourth proportional to 2,209,511.79, 3,048,669.08 and 1,291,563.50 is: 1,782,090.37
Step by Step Solution
- Step 1: Write the proportion equation
2,209,511.79 : 3,048,669.08 = 1,291,563.50 : x - Step 2: Convert to fraction form
2,209,511.79/3,048,669.08 = 1,291,563.50/x - Step 3: Cross multiply
2,209,511.79x = 3,048,669.08 × 1,291,563.50 - Step 4: Simplify right side
2,209,511.79x = 3,937,549,685,605.42 - Step 5: Solve for x
x = 3,937,549,685,605.42/2,209,511.79 - Step 6: Final answer
x = 1,782,090.37
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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.