Finding the Fourth Proportional to 780,985.07, 1,171,871.94 and 354,248.95
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Solution
The fourth proportional to 780,985.07, 1,171,871.94 and 354,248.95 is: 531,552.28
Step by Step Solution
- Step 1: Write the proportion equation
780,985.07 : 1,171,871.94 = 354,248.95 : x - Step 2: Convert to fraction form
780,985.07/1,171,871.94 = 354,248.95/x - Step 3: Cross multiply
780,985.07x = 1,171,871.94 × 354,248.95 - Step 4: Simplify right side
780,985.07x = 415,134,398,420.10 - Step 5: Solve for x
x = 415,134,398,420.10/780,985.07 - Step 6: Final answer
x = 531,552.28
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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.