Finding the Fourth Proportional to 815,828.95, 1,125,777.93 and 471,686.95
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Solution
The fourth proportional to 815,828.95, 1,125,777.93 and 471,686.95 is: 650,889.83
Step by Step Solution
- Step 1: Write the proportion equation
815,828.95 : 1,125,777.93 = 471,686.95 : x - Step 2: Convert to fraction form
815,828.95/1,125,777.93 = 471,686.95/x - Step 3: Cross multiply
815,828.95x = 1,125,777.93 × 471,686.95 - Step 4: Simplify right side
815,828.95x = 531,014,764,963.52 - Step 5: Solve for x
x = 531,014,764,963.52/815,828.95 - Step 6: Final answer
x = 650,889.83
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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.