Finding the Fourth Proportional to 2,106,410.22, 2,906,834.13 and 1,139,537.70
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Solution
The fourth proportional to 2,106,410.22, 2,906,834.13 and 1,139,537.70 is: 1,572,555.55
Step by Step Solution
- Step 1: Write the proportion equation
2,106,410.22 : 2,906,834.13 = 1,139,537.70 : x - Step 2: Convert to fraction form
2,106,410.22/2,906,834.13 = 1,139,537.70/x - Step 3: Cross multiply
2,106,410.22x = 2,906,834.13 × 1,139,537.70 - Step 4: Simplify right side
2,106,410.22x = 3,312,447,078,781.70 - Step 5: Solve for x
x = 3,312,447,078,781.70/2,106,410.22 - Step 6: Final answer
x = 1,572,555.55
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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.