Finding the Fourth Proportional to 742,982.98, 1,025,424.83 and 416,318.08
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Solution
The fourth proportional to 742,982.98, 1,025,424.83 and 416,318.08 is: 574,579.64
Step by Step Solution
- Step 1: Write the proportion equation
742,982.98 : 1,025,424.83 = 416,318.08 : x - Step 2: Convert to fraction form
742,982.98/1,025,424.83 = 416,318.08/x - Step 3: Cross multiply
742,982.98x = 1,025,424.83 × 416,318.08 - Step 4: Simplify right side
742,982.98x = 426,902,896,409.93 - Step 5: Solve for x
x = 426,902,896,409.93/742,982.98 - Step 6: Final answer
x = 574,579.64
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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.