Finding the Fourth Proportional to 1,918,233.42, 2,646,206.70 and 1,338,671.94
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Solution
The fourth proportional to 1,918,233.42, 2,646,206.70 and 1,338,671.94 is: 1,846,700.52
Step by Step Solution
- Step 1: Write the proportion equation
1,918,233.42 : 2,646,206.70 = 1,338,671.94 : x - Step 2: Convert to fraction form
1,918,233.42/2,646,206.70 = 1,338,671.94/x - Step 3: Cross multiply
1,918,233.42x = 2,646,206.70 × 1,338,671.94 - Step 4: Simplify right side
1,918,233.42x = 3,542,402,656,730.00 - Step 5: Solve for x
x = 3,542,402,656,730.00/1,918,233.42 - Step 6: Final answer
x = 1,846,700.52
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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.