Finding the Fourth Proportional to 1,189,203.04, 1,641,101.28 and 679,916.08
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Solution
The fourth proportional to 1,189,203.04, 1,641,101.28 and 679,916.08 is: 938,284.81
Step by Step Solution
- Step 1: Write the proportion equation
1,189,203.04 : 1,641,101.28 = 679,916.08 : x - Step 2: Convert to fraction form
1,189,203.04/1,641,101.28 = 679,916.08/x - Step 3: Cross multiply
1,189,203.04x = 1,641,101.28 × 679,916.08 - Step 4: Simplify right side
1,189,203.04x = 1,115,811,149,180.58 - Step 5: Solve for x
x = 1,115,811,149,180.58/1,189,203.04 - Step 6: Final answer
x = 938,284.81
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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.