Finding the Fourth Proportional to 1,189,207.02, 1,641,106.80 and 679,920.06
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Solution
The fourth proportional to 1,189,207.02, 1,641,106.80 and 679,920.06 is: 938,290.32
Step by Step Solution
- Step 1: Write the proportion equation
1,189,207.02 : 1,641,106.80 = 679,920.06 : x - Step 2: Convert to fraction form
1,189,207.02/1,641,106.80 = 679,920.06/x - Step 3: Cross multiply
1,189,207.02x = 1,641,106.80 × 679,920.06 - Step 4: Simplify right side
1,189,207.02x = 1,115,821,433,922.41 - Step 5: Solve for x
x = 1,115,821,433,922.41/1,189,207.02 - Step 6: Final answer
x = 938,290.32
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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.