Finding the Fourth Proportional to 915,140.97, 1,373,087.43 and 402,542.19
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Solution
The fourth proportional to 915,140.97, 1,373,087.43 and 402,542.19 is: 603,978.66
Step by Step Solution
- Step 1: Write the proportion equation
915,140.97 : 1,373,087.43 = 402,542.19 : x - Step 2: Convert to fraction form
915,140.97/1,373,087.43 = 402,542.19/x - Step 3: Cross multiply
915,140.97x = 1,373,087.43 × 402,542.19 - Step 4: Simplify right side
915,140.97x = 552,725,621,133.67 - Step 5: Solve for x
x = 552,725,621,133.67/915,140.97 - Step 6: Final answer
x = 603,978.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.