Finding the Fourth Proportional to 909,478.54, 1,255,026.17 and 522,356.99
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Solution
The fourth proportional to 909,478.54, 1,255,026.17 and 522,356.99 is: 720,821.50
Step by Step Solution
- Step 1: Write the proportion equation
909,478.54 : 1,255,026.17 = 522,356.99 : x - Step 2: Convert to fraction form
909,478.54/1,255,026.17 = 522,356.99/x - Step 3: Cross multiply
909,478.54x = 1,255,026.17 × 522,356.99 - Step 4: Simplify right side
909,478.54x = 655,571,687,563.19 - Step 5: Solve for x
x = 655,571,687,563.19/909,478.54 - Step 6: Final answer
x = 720,821.50
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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.