Finding the Fourth Proportional to 903,259.59, 1,355,117.21 and 637,539.09
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Solution
The fourth proportional to 903,259.59, 1,355,117.21 and 637,539.09 is: 956,469.44
Step by Step Solution
- Step 1: Write the proportion equation
903,259.59 : 1,355,117.21 = 637,539.09 : x - Step 2: Convert to fraction form
903,259.59/1,355,117.21 = 637,539.09/x - Step 3: Cross multiply
903,259.59x = 1,355,117.21 × 637,539.09 - Step 4: Simplify right side
903,259.59x = 863,940,189,719.04 - Step 5: Solve for x
x = 863,940,189,719.04/903,259.59 - Step 6: Final answer
x = 956,469.44
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.