Finding the Fourth Proportional to 981,474.69, 1,354,395.60 and 551,745.66
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Solution
The fourth proportional to 981,474.69, 1,354,395.60 and 551,745.66 is: 761,386.82
Step by Step Solution
- Step 1: Write the proportion equation
981,474.69 : 1,354,395.60 = 551,745.66 : x - Step 2: Convert to fraction form
981,474.69/1,354,395.60 = 551,745.66/x - Step 3: Cross multiply
981,474.69x = 1,354,395.60 × 551,745.66 - Step 4: Simplify right side
981,474.69x = 747,281,894,223.10 - Step 5: Solve for x
x = 747,281,894,223.10/981,474.69 - Step 6: Final answer
x = 761,386.82
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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.